tag:blogger.com,1999:blog-36289145707714831942024-02-07T04:12:47.011-08:00CCNA 4.0 Exploration (tips & tricks)This blog is helping students to get better results in the module test (ccna 1 to 4 - version 4.0 - exploration). Enjoy it! :)PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.comBlogger56125tag:blogger.com,1999:blog-3628914570771483194.post-88349576675001024172013-06-04T01:37:00.001-07:002013-06-04T01:38:06.594-07:00UPDATE comming soon!Soon, new design for the website !PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com6tag:blogger.com,1999:blog-3628914570771483194.post-23529866183059341012010-07-04T11:10:00.000-07:002010-07-04T11:10:45.150-07:00CCNA 3 exploration - Final Exam (update - 3)<span style="font-size: large;"><b>CCNA 3 - final exam </b></span><br />
<br />
<br />
1<br />
Refer to the exhibit. A network administrator needs to add IP phones to the network. To which devices should the IP phones connect?<br />
AS1 and AS2***<br />
DS1 and DS2<br />
DS1, DS2, and CS1<br />
AS1, AS2, DS1, and DS2<br />
2<br />
Which switching method provides error-free data transmission?<br />
fragment-free<br />
fast-forward<br />
integrity-checking<br />
store-and-forward***<br />
3<br />
Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the same time. How do the hosts respond on the network? (Choose two.)<br />
After the end of the jam signal, a backoff algorithm is invoked. ***<br />
Hosts 1 and 4 are operating full duplex so no collision will exist.<br />
The hub will block the port connected to Host 4 to prevent a collision.<br />
Hosts 1 and 4 are assigned shorter backoff values to provide them priority to access the media.<br />
If a host has data to transmit after the backoff period of that host, the host checks to determine if the line is idle before transmitting. ***<br />
4<br />
What information in an Ethernet frame is used by a Layer 2 switch to build its address table?<br />
source IP address<br />
source MAC address***<br />
destination IP address<br />
destination MAC address<br />
5<br />
Which three actions are performed during the boot sequence of a Cisco switch? (Choose three.)<br />
The boot loader uses the self-contained switch operating system to boot the switch.<br />
The boot loader retrieves diagnostics routines via TFTP.<br />
The boot loader performs POST. **<br />
The boot loader is loaded from RAM.<br />
The boot loader initializes the flash file system that is used to boot the system. ***<br />
The boot loader loads the default operating system if the flash-based operating system is corrupt or missing. ***<br />
6<br />
While configuring a new switch, a network administrator configures the switch as an HTTP server. What benefits does this configuration provide?<br />
This allows the switch to host web pages for the network.<br />
This allows remote VPN connections to the switch over the Internet.<br />
This is required if a web server or web farm is attached to the switch.<br />
This allows web-based configuration tools to be used with the switch. ***<br />
7<br />
Company policy requires disabling the command history buffer on network devices. An administrator enters terminal no history size at the command prompt on a Cisco Catalyst switch and receives no error messages back, but the command history buffer is still available. What is the problem?<br />
The command contained a syntax error.<br />
The Cisco IOS version does not support disabling the command history buffer.<br />
The command history can only be disabled on a router, not a switch.<br />
The size parameter reset the default buffer size but did not disable access to the buffer. ***<br />
8<br />
What is the purpose of issuing the command switchport mode access on a switch interface?<br />
disable port security<br />
make the port operational<br />
override the default port behavior<br />
force the port to be a part of a single vlan ***<br />
<br />
9<br />
What is a possible impact of setting too short an aging time in the MAC address table of a switch?<br />
overly large address table<br />
unnecessary flooding of packets ***<br />
excessive timeouts of static addresses<br />
impaired ability to dynamically learn new addresses<br />
<br />
10<br />
Refer to the exhibit. What does STATIC indicate in the output that is shown?<br />
Switch port Fa0/24 can only work in VLAN 99.<br />
VLAN 99 was manually added to the VLAN database.<br />
MAC address 0001.637b.b267 was learned from the source address of a frame that was received on switch port Fa0/24.<br />
MAC address 0001.637b.b267 was manually associated with the switch port Fa0/24. /****<br />
11<br />
Refer to the exhibit. What will be the result of the commands that are shown in the exhibit?<br />
Only clients on VLAN 2 will be able to use DHCP for addressing.<br />
DHCP server responses will only be permitted on interface Fa0/2.***<br />
Only 100 clients are permitted to request DHCP addresses on VLAN 2.<br />
Client requests for DHCP addresses will be filtered out if the requests are not received on interface Fa0/2.<br />
12<br />
Why is it advisable that a network administrator use SSH instead of Telnet when managing switches?<br />
SSH uses TCP whereas Telnet does not.<br />
SSH encrypts only the username and password when logging in.<br />
SSH encrypts all remote management communications whereas Telnet does not. ***<br />
SSH sends a clear text message steam which reduces the bandwidth use for management.<br />
13<br />
Which service should be disabled on a Cisco switch or router to prevent packet sniffers from capturing information about the device?<br />
SSH<br />
VTP<br />
CDP ***<br />
SNMP<br />
14<br />
Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campus environment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks. Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. How can the convergence time be reduced?<br />
Increase the capacity of the distribution and core trunk links to 10 Gb/s.<br />
Add a trunk link that directly connects D1 and D2.<br />
Use Layer 3 switching on the core switch.<br />
Implement Rapid Spanning Tree Protocol. ***<br />
15<br />
Which statement is correct about STP architecture?<br />
Spanning Tree Protocol will guarantee a loop free Layer 2 topology. ***<br />
Spanning Tree Protocol guarantees the shortest path to destination networks.<br />
The switch with the highest priority will be assigned the lowest BID in the root election.<br />
The first step in the spanning-tree election process is to determine the root port.<br />
To select designated ports, the spanning-tree algorithm must determine the longest contiguous path from the root bridge.<br />
16<br />
What identifier in the BPDU creates a unique BID for a switch?<br />
IP address<br />
MAC address ***<br />
bridge priority<br />
VLAN ID<br />
port priority<br />
17<br />
Refer to the exhibit. Each switch is shown with its MAC address. Which switch will be elected as the spanning-tree root bridge if the switches are configured with their default priority values?<br />
switch A<br />
switch B<br />
switch C<br />
switch D<br />
switch E<br />
switch F ***<br />
18<br />
Which device or devices should have the Spanning Tree Protocol enabled to prevent host traffic from creating a broadcast storm?<br />
Core_S1<br />
Access_S2 and Access_S3<br />
Core_S1, Access_S2, and Access_S3 ***<br />
Core_S1, Access_S2, Access_S3, and R1<br />
19<br />
Refer to the exhibit. What are two reasons for the Fa0/24 port being placed in the blocking state? (Choose two.)<br />
This switch is not the root bridge.***<br />
The Fa0/24 port is administratively down.<br />
STP has detected links that create a loop.***<br />
There is a change in the VTP configuration.<br />
The Fa0/24 port is overloaded with too much traffic for its configured bandwidth.<br />
20<br />
Which STP port type can only appear once on a segment, and must be present in order for traffic to flow on that segment?<br />
non-root port<br />
disabled port<br />
designated port ***<br />
non-designated port<br />
<br />
21<br />
Refer to the exhibit. Which Spanning Tree Protocol version is in effect?<br />
Per VLAN Spanning Tree (PVST)<br />
Per VLAN Spanning Tree + (PVST+)<br />
Common Spanning Tree (CST)<br />
Rapid Spanning Tree Protocol (RSTP) ***<br />
Multiple Spanning Tree Protocol (MSTP)<br />
22<br />
Refer to the exhibit. All edge ports are configured with the spanning-tree portfast command. Host1 is recently connected to port Fa0/1 on switch SW1 . Which statement is true about the status of port Fa0/1?<br />
The port will transition into blocking state.<br />
The port will transition immediately into forwarding state. ***<br />
The port will transition into blocking state and then immediately into forwarding state.<br />
The port will transition into blocking state and immediately transition through the listening and learning states.<br />
23<br />
Refer to the exhibit. What is the maximum number of VLANs that can be deleted from the Switch as it is configured?<br />
zero<br />
four ***<br />
five<br />
eight<br />
nine<br />
24<br />
What are two characteristics of normal range VLANs? (Choose two.)<br />
not learned by VTP<br />
stored in vlan.dat file ***<br />
designed for service providers<br />
can contain ports used as trunks<br />
identified by a VLAN ID between 1 and 1005 ***<br />
25<br />
How are data frames identified and sent to the correct VLAN when exiting an Ethernet trunk?<br />
Frames are forwarded to the correct VLAN based on the VLAN tag***<br />
Frames are always forwarded to the native VLAN when exiting a trunk.<br />
Frames are forwarded to the correct VLAN based on the source IP address.<br />
Frames are forwarded to the correct VLAN based on information in the MAC address table.<br />
26<br />
Refer to the exhibit. What is the purpose of the configuration commands that are shown?<br />
to activate port Fa0/10<br />
to make the port a member of VLAN 30 ***<br />
to activate port security on port Fa0/10<br />
to add VLAN 30 to the trunk that is connected to port Fa0/10<br />
27<br />
How does a switch that is configured for 802.1Q trunking handle untagged frames that are received on a trunk port?<br />
The frames are dropped.<br />
The frames are assigned to the native VLAN. ***<br />
The frames are assigned to the default VLAN.<br />
The frames are assigned to the management VLAN.<br />
28<br />
Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping computer 3 but cannot ping computer 1. What is a possible cause for this failure?<br />
S1 port Fa0/11 is in the wrong VLAN. ***<br />
R1 does not have an active routing protocol.<br />
The IP address of computer 1 is in the wrong logical network.<br />
Router interface Fa0/0 has the wrong trunk encapsulation type configured.<br />
29<br />
Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?<br />
QoS<br />
routing<br />
trunking ***<br />
VPN<br />
30<br />
Refer to the exhibit. What is true of the configuration of switch S1?<br />
Only VLAN 99 will be allowed to use the trunk links.<br />
Switch ports Fa0/1 and Fa0/3 are configured with a standard trunking protocol. ***<br />
Switch ports Fa0/1 and Fa0/3 should be configured as access ports to allow data from multiple VLANs to access switch S1.<br />
The switch negotiated trunk links for interfaces Fa0/1 and Fa0/3 because all connected interfaces have been configured with the switchport mode dynamic auto command.<br />
31<br />
Refer to the exhibit. Which two statements are true about the operation of the interfaces? (Choose two.)<br />
Incoming traffic with VLAN ID 0 is processed by interface fa0/0.<br />
Incoming traffic that has a VLAN ID of 2 is processed by subinterface fa0/0.2.***<br />
Both subinterfaces remain up with line protocol up, even if fa0/0 line protocol is down.<br />
Subinterfaces use unique MAC addresses by adding the 802.1Q VLAN ID to the hardware address.<br />
Traffic inbound on this router is processed by different subinterfaces, depending on the VLAN from which the traffic originated.***<br />
32<br />
A network administrator is asked to connect four switches that are each configured with eight VLANs. Routers that have two FastEthernet ports each that support trunking are available. What is the minimum number of routers needed to interconnect traffic from all of the VLANs if trunking is allowed?<br />
1 ***<br />
2<br />
4<br />
8<br />
16<br />
33<br />
Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.85. What will the router do with this packet?<br />
The router will ignore the packet. ***<br />
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.<br />
The router will forward the packet out interface FastEthernet 0/1.1.<br />
The router will forward the packet out interface FastEthernet 0/1.2.<br />
The router will forward the packet out interface FastEthernet 0/1.3.<br />
34<br />
What are two requirements for configuring inter-VLAN routing using the router-on-a-stick model? (Choose two.)<br />
Each subinterface should be configured with its own IP address, subnet mask, and unique VLAN assignment. ***<br />
The physical interface of the router must be connected to a trunk link on the adjacent switch.***<br />
The number of physical interfaces on the router should match the number of VLANs.<br />
Different static VLANs should be assigned to different interfaces of the router.<br />
The router should be configured as the VTP server.<br />
35<br />
Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?<br />
Allow all VLANs on the trunk link.<br />
Remove the native VLAN from the trunk.<br />
Include a router or switch with Layer 3 capabilities.<br />
Configure the same native VLAN on both ends of the trunk.***<br />
36<br />
Refer to the exhibit. The devices in the network are operational and configured as indicated in the exhibit. However, hosts A and D cannot ping each other. What is the most likely cause of this problem?<br />
The link between the switches is up but not trunked.<br />
The Fa0/11 interface of Switch1 is not configured as a trunk. ***<br />
Hosts A and D are configured with IP addresses from different subnets.<br />
VLAN 20 and VLAN 30 are not allowed on the trunk between the switches.<br />
37<br />
Refer to the exhibit. A network administrator has segmented the network into two VLANs. The connected hosts can only access resources in their own VLAN. What is the most scalable and cost effective solution to allow inter-VLAN communication in this network?<br />
Replace S1 with a router that has one FastEthernet interface for each PC.<br />
Add a second switch and divide the PCs so that each VLAN is connected to its own switch.<br />
Configure a router with two subinterfaces on one of its FastEthernet ports and connect it to S1 using a trunk link. ***<br />
Connect a router to a port on S1 and assign the IP address of VLAN1 to the connecting router interface.<br />
38<br />
Refer to the exhibit. After the listed commands are entered into router R1 and switch S1, the administrator enters the show interface fa0/1 trunk and gets the results shown. What is the likely problem?<br />
The trunk is established, but no VLANs have been configured to use it.<br />
The router is missing the dynamic trunking protocol statements necessary to form a trunk.<br />
The trunk has not been established because the router does not support dynamic trunking protocol.***<br />
The router, the switch, or both must be configured with the dynamic desirable option for dynamic trunking protocol to establish a trunk.<br />
39<br />
Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2. Hosts A, B, C, and D are correctly configured with IP addresses in the subnet range for VLAN 50. Host A can communicate with host B, but cannot communicate with host C or host D. What is the cause of this problem?<br />
There is a native VLAN mismatch.<br />
The Fa0/11 interface of Switch1 is not configured as a trunk.<br />
The link between Switch1 and Switch2 is up but not trunked.<br />
VLAN 50 is not allowed on the trunk link between Switch1 and Switch2. ***<br />
40<br />
Which configuration changes will increment the configuration revision number on the VTP server?<br />
configuring trunk links on the VTP server<br />
configuring or changing the VTP password<br />
configuring or changing the VTP domain name<br />
configuring or changing the VTP version number<br />
configuring or deleting a VLAN or creating a VLAN name ***<br />
41<br />
What is the purpose of VTP pruning?<br />
to restrict traffic on specified trunk lines ***<br />
to designate switches that do not participate in VTP<br />
to advertise VTP domain information to specified switches only<br />
to reduce the propagation of VTP advertisements in the switched network<br />
<br />
42<br />
A new switch is to be added to an existing network in a remote office. The network administrator does not want the technicians in the remote office to be able to add new VLANs to the switch, but the switch should receive VLAN updates from the VTP domain. Which two steps must be performed to configure VTP on the new switch to meet these conditions? (Choose two.)<br />
Configure an IP address on the new switch.<br />
Configure the existing VTP domain name on the new switch.***<br />
Configure all ports of both switches to access mode.<br />
Configure the new switch as a VTP client. ***<br />
Enable VTP pruning.<br />
43<br />
Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?<br />
All the VLANs were pruned from the trunk port between SW1 and SW2.<br />
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.<br />
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.***<br />
The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.<br />
<br />
44<br />
Refer to the exhibit. The network administrator is planning five additional VLANs to be shared throughout the VTP domain on S3. What action should the administrator take before creating the additional VLANs?<br />
Create the VLANs on a switch in VTP server mode and allow them to propogate to the other switches in the domain. ***<br />
Modify the configuration revision to 10 to support the additional VLANs.<br />
Enable the VTP pruning mode in order to create the VLANs on S3.<br />
Enable the VTP v2 mode.<br />
45<br />
Refer to the exhibit. Switches S2 and S3 are properly connected using an ethernet cable. A network administrator has configured both switches with VTP, but S3 is unable to propagate VLANs to S2. What could be the reason for this?<br />
The VTP configuration revision is different on both switches.<br />
The VTP domains are different on both switches.***<br />
VTP pruning is disabled.<br />
VTP v2 is disabled.<br />
46<br />
A wireless LAN access point will convert traffic between which two frame encapsulation types?<br />
802.1 and 802.11<br />
802.3 and 802.11 ***<br />
802.3 and 802.16<br />
802.5 and 802.16<br />
47<br />
Which parameter is used to uniquely identify one wireless network from another?<br />
SSID ***<br />
OFDM<br />
WEP<br />
DSSS<br />
48<br />
A wireless client is attempting to establish a connection with a wireless access point. What process does the client use to discover the access points which are available to it?<br />
probing ***<br />
beaconing<br />
association<br />
authentication<br />
49<br />
Why is MAC address filtering considered a poor choice in securing a WLAN?<br />
Available bandwidth is reduced.<br />
MAC addresses are easily spoofed. ***<br />
APs are more susceptible to DoS attacks.<br />
The payload encryption is easily broken.<br />
50<br />
Which combination is required to establish a connection to initially configure the Linksys WRT300N wireless access device?<br />
a computer with a console connection to the WRT300N<br />
a computer with a wireless connection to the WRT300N<br />
a computer with an AUX port connection to the WRT300N<br />
a computer configured in the same IP subnet as the WRT300N and a direct cable connection to it *** <span style="font-size: large;"><b><br />
</b></span>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com2tag:blogger.com,1999:blog-3628914570771483194.post-80941705983755245482010-07-04T11:09:00.000-07:002010-07-04T11:10:56.940-07:00CCNA 3 exploration - Final Exam (update - 2)<span style="font-size: large;"><b>CCNA 3 - final exam </b></span><br />
<br />
<br />
1.Refer to the exhibit. A network administrator needs to add IP phones to the network. To which devices should the IP phones connect?<br />
AS1 and AS2***<br />
DS1 and DS2 DS1,<br />
DS2, and CS1 AS1,<br />
AS2, DS1, and DS2<br />
<br />
2 What advantage does cut-through switching provide?<br />
It enables QoS It forwards frames quickly.***<br />
It provides an analysis of frames.<br />
It allows reduction of traffic by using error checking to drop corrupt frames.<br />
<br />
3 Which switch forwarding method should be used on a network that employs frame<br />
classification based on an assigned Quality of Service (QoS) value? cut-through fast-forward fragment-free store-and-forward***<br />
4<br />
Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal?<br />
only hosts A and B only hosts A, B, and C***<br />
only hosts A, B, C, and D<br />
only hosts A, B, C, and E<br />
5<br />
Refer to the exhibit. The network consists of four hubs and a switch. The hosts connected to each hub are assigned addresses in the respective VLAN as shown. PC1 on VLAN 1 becomes infected with a virus and initiates a continuous IP broadcast. Which hubs will receive the broadcasts?<br />
Hub A<br />
Hubs A andB<br />
Hubs A and C***<br />
Hubs A, B, C, and D<br />
<br />
6 Which three statements are correct concerning the default configuration of a new switch? (Choose three.)<br />
It is configured in VTP server mode.***<br />
STP is automatically enabled.***<br />
The first VTY line is automatically configured to allow remote connections.<br />
VLAN1 is configured with a management IP address. All switch ports are assigned toVLAN1.****<br />
The enable password is configured as cisco.<br />
<br />
7 What will be the effect of the command S1# copy system:running-config tftp://172.16.2.155/tokyo-config?<br />
The IOS will be copied to the TFTP server.<br />
The configuration file named tokyo-config will overwrite the startup configuration file on S1.<br />
The running configuration file on S1 will be saved via TFTP to a file named tokyo-config.***<br />
The contents of NVRAM on S1 will become the startup configuration file on the tokyo switch.<br />
8<br />
Refer to the exhibit. The network administrator wants to allow both SSH and Telnet connections to Switch1. However, the SSH connections fail. What is the most likely cause of this problem? The RSA key has been removed.***<br />
SSH has been configured on the wrong line.<br />
The transport input command is applied incorrectly.<br />
The domain name has been configured in the wrong configuration mode.<br />
<br />
9 What is the benefit of the auto-MDIX feature on a Cisco Catalyst switch?<br />
dynamically assigns a new management VLAN ID<br />
autonegotiates IP address information for initial management connections<br />
allows the use of straight-through patch cables regardless of connected device types***<br />
places a port immediately in the forwarding state to reduce the time for the spanning tree to reconverge<br />
10<br />
Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?<br />
This entry can only be removed from the MAC address table by a network administrator.<br />
When forwarding a frame to the device with address 0060.5c5b.cd23, the switch does not have to perform a lookup to determine the final destination port.<br />
Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18. The switch learned this MAC address from the source address in a frame received on Fa0/18.****<br />
11<br />
Refer to the exhibit. The teacher host is connected to port Fa0/7 on switch STW. A student has decided to share access to the Internet by attaching a hub and laptop to STW as shown. What will be the result of the student making this connection?<br />
The Fa0/7 port of STW will be shutdown.<br />
The student will gain full access to the Internet.<br />
Both the teacher and student will be able to receive data but only the teacher will be able to send.<br />
The frames from the laptop will be dropped, but the teacher host will maintain connectivity with the network.***<br />
<br />
12 Which statement regarding the service password-encryption command is true?<br />
The service password-encryption command is entered at the privileged EXEC mode prompt. The service password-encryption command encrypts only passwords for the console and VTY ports.<br />
The service password-encryption command encrypts all previously unencrypted passwords in the running configuration.***<br />
To see the passwords encrypted by the service password-encryption command, enter the no service password-encryption command.<br />
<br />
13 A network administrator enables sticky learning on all access mode interfaces of a Catalyst switch, saves the configuration, then connects hosts to the switch. After the switch operates for several days, the administrator reboots the switch without saving the running configuration. What is the result?<br />
All previously learned MAC addresses are lost.***<br />
The switch reverts to non-sticky dynamic learning.<br />
Connected hosts are no longer able to communicate with the switch.<br />
Previously learned sticky addresses are retained in the switch configuration.<br />
<br />
14<br />
Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campus environment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks. Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. How can the convergence time be reduced?<br />
Increase the capacity of the distribution and core trunk links to 10 Gb/s.<br />
Add a trunk link that directly connects D1 and D2.<br />
Use Layer 3 switching on the core switch.<br />
Implement Rapid Spanning Tree Protocol.***<br />
<br />
15 What is a result of improperly implementing a network with redundancy at Layer 2?<br />
an increase of unicast and multicast errors at Layer 3<br />
a decrease in the amount of broadcast traffic<br />
end device malfunction because of broadcast storms***<br />
an increase in throughput at all points in the network<br />
<br />
16 Why is it important that the network administrator consider the spanning-tree network diameter when choosing the root bridge?<br />
The network diameter limitation is 9.<br />
BPDUs may be discarded because of expiring timers.***<br />
The cabling distance between the switches is 100 meters.<br />
The network diameter must be set to the number of meters of the cable between the root bridge and its farthest connected switch.<br />
17<br />
Refer to the exhibit. What does "FORWARDING" mean in the command output shown?<br />
The switch is sending and receiving data frames.-***<br />
The switch is receiving BPDUs, but not sending data frames. The switch is participating in an election process by forwarding the BPDUs it receives. The switch is receiving BPDUs and populating the MAC address table, but not sending data.<br />
<br />
18<br />
<br />
Which device or devices should have the Spanning Tree Protocol enabled to prevent host traffic from creating a broadcast storm?<br />
Core_S1 Access_S2 and Access_S3<br />
Core_S1, Access_S2, and Access_S3****<br />
Core_S1, Access_S2, Access_S3, and R1<br />
19<br />
Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?<br />
Cat-A Cat-B Cat-C Cat-D***<br />
20 RSTP is enabled in a switched network that is active and converged. Which switch port type assumes a discarding state on non-root switches? root port edge port alternate port*** designated port<br />
21 In the implementation of PVST+ in a specific VLAN where all switches have default spanning tree priorities, which spanning-tree command setting could be assigned to force one of the Catalyst switches to become and remain the root bridge? root primary-*** priority 8192 priority 2048 spanning-tree mode rapid pvst<br />
<br />
22<br />
Refer to the exhibit. All edge ports are configured with the spanning-tree portfast command. Host1 is recently connected to port Fa0/1 on switch SW1 . Which statement is true about the status of port Fa0/1?<br />
The port will transition into blocking state.<br />
The port will transition immediately into forwarding state.***<br />
The port will transition into blocking state and then immediately into forwarding state. The port will transition into blocking state and immediately transition through the listening and learning states.<br />
<br />
23 While monitoring LAN traffic, a network technician notices an excessive number of broadcasts. Which two steps could be included in the processes that are needed to reduce the number of broadcasts on the network? (Choose two.)<br />
Replace any existing hubs with switches. Add a Layer 3 device to route between networks.*** Subnet the existing IP network to create two networks.***<br />
Increase the backbone speed by three times the current speed. Add additional switches and spread out the number of hosts evenly between them.<br />
<br />
24 How does a switch that is configured for 802.1Q trunking handle untagged frames that are received on a trunk port?<br />
The frames are dropped.<br />
The frames are assigned to the native VLAN.***<br />
The frames are assigned to the default VLAN. The frames are assigned to the management VLAN.<br />
25<br />
Refer to the exhibit. What would happen if the network administrator moved the network cable of Host A from interface Fa0/1 to Fa0/3 on switch SW1?<br />
Host A remains a member of VLAN 10, because the router is routing traffic between VLANs. Host A is no longer a member of VLAN 10, because port Fa0/3 has been manually assigned to VLAN 30.***<br />
Host A remains a member of VLAN 10, because the switch provides dynamic VLAN assignment for the port. Host A maintains connectivity to all members of VLAN 10, because it is connected to the same physical network. Host A is no longer a member of VLAN 10, but because port Fa0/3 was unused, it is now a member of VLAN 1.<br />
<br />
26<br />
Refer to the exhibit. The devices in the network are operational and configured as indicated in the exhibit. However, hosts B and D cannot ping each other. What is the most likely cause of this problem?<br />
The link between the switches is up but not trunked. The Fa0/11 interface of Switch1 is not configured as a trunk.<br />
Hosts B and D are configured with IP addresses from different subnets.***<br />
VLAN 20 and VLAN 30 are not allowed on the trunk between the switches.<br />
27<br />
Refer to the exhibit. A network administrator issues the show interfaces fastEthernet 0/8 switchport command to check the status of the port. What can be concluded from the output? Port Fa0/8 is configured as a trunk with 802.1q encapsulation.<br />
Port Fa0/8 is configured as a trunk in VLAN 1.<br />
Port Fa0/8 is configured in access mode and associated with VLAN 1.***<br />
Port Fa0/8 is configured as a trunk and VLAN 1 is a native VLAN for the trunk.<br />
28<br />
Refer to the exhibit. SW-T has been configured with a single trunking interface. Which VLANs will be allowed across the trunk?<br />
Only VLAN 1 will be allowed across the trunk.<br />
All configured VLANs will be allowed across the trunk.***<br />
Only the native VLAN will be allowed across the trunk.<br />
Only the the management and native VLANs will be allowed across the trunk. Only VLANs that are configured on the VTP server in the domain will be allowed across the trunk.<br />
29<br />
Refer to the exhibit. How will switch S2 manage traffic coming from host PC1?<br />
S2 will drop the traffic, unless it is management traffic.<br />
S2 will tag the frame with VLAN ID 99 when it forwards it over the trunk link.<br />
S2 will leave the traffic untagged when it forwards it over a trunk link.***<br />
S2 will tag the traffic with the highest VLAN ID value when it forwards it over the trunk link.<br />
<br />
30 What is the purpose of VLAN trunking?<br />
It improves network performance by reducing broadcast traffic. It selects the best path to transmit data in a switched network.<br />
It carries the traffic of multiple VLANs through a single link.***<br />
It avoids spanning tree loops in a switched network.<br />
<br />
31 A network administrator implements inter-VLAN routing by configuring subinterfaces on a router. What is one important fact that must be considered?<br />
The physical interface must have an IP address configured.<br />
The subinterface numbers must match the VLAN ID number.<br />
The no shutdown command must be issued on each subinterface.<br />
The IP address of each router subinterface must be used as the default gateway for hosts on the corresponding VLAN.***<br />
<br />
32<br />
Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?<br />
Configure VLANs with different VLAN IDs on switch SW2.<br />
Reconfigure the trunk port on switch SW2 with static trunk configuration.***<br />
Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.<br />
Apply IP addresses that are in the same subnet to the interfaces used to connect SW1 and SW2.<br />
33<br />
Refer to the exhibit. Which three options correctly describe the router configuration that is shown? (Choose three.)<br />
An IEEE standard trunking protocol is in use.***<br />
Interface Fa0/1 has been configured with subinterfaces.***<br />
The shutdown command has been applied to interface Fa0/1. Interface Fa0/1.3 is mapped to the default management VLAN.<br />
The configuration is appropriate for a router-on-a-stick network design.***<br />
An IP address should be applied to interface Fa0/1 for routing to occur.<br />
34<br />
Refer to the exhibit. A new host needs to be connected to VLAN 3. Which IP address should be assigned to this new host?<br />
192.168.1.22 /28<br />
192.168.1.31 /28<br />
192.168.1.32 /28<br />
192.168.1.52 /28***<br />
192.168.1.63 /28<br />
35<br />
Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?<br />
Interface Fa0/0 is missing IP address configuration information.<br />
IP addresses on the subinterfaces are incorrectly matched to the VLANs.***<br />
Each subinterface of Fa0/0 needs separate no shutdown commands.<br />
Routers do not support 892.1Q encapsulation on subinterfaces.<br />
36<br />
Refer to the exhibit. Router R1 is properly configured for router on a stick inter-VLAN routing, but PC1 is unable to ping PC2. What needs to be done to resolve the problem?<br />
Rename VLAN1.<br />
Connect one more port of S1 to R1. Configure the Fa0/1 port of S1 as a trunk port.***<br />
Move the Fa0/0 interface of R1 to another VLAN.<br />
37<br />
Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?<br />
<br />
Allow all VLANs on the trunk link.<br />
Remove the native VLAN from the trunk.<br />
Include a router or switch with Layer 3 capabilities.<br />
Configure the same native VLAN on both ends of the trunk.***<br />
38<br />
Refer to the exhibit. A network administrator has segmented the network into two VLANs. The connected hosts can only access resources in their own VLAN. What is the most scalable and cost effective solution to allow inter-VLAN communication in this network?<br />
Replace S1 with a router that has one FastEthernet interface for each PC.<br />
Add a second switch and divide the PCs so that each VLAN is connected to its own switch. Configure a router with two subinterfaces on one of its FastEthernet ports and connect it to S1 using a trunk link.***<br />
Connect a router to a port on S1 and assign the IP address of VLAN1 to the connecting router interface.<br />
39<br />
Refer to the exhibit. This switch is to be added to the production network. Which two facts about VLANs and VTP operation can be confirmed by this output? (Choose two.)<br />
The network administrator will be able to configure VLANs of local significance on this switch. VLANs can only be added to the VLAN database on this switch by a VTP advertisement.***<br />
All VLANs that are configured on this switch will be sent to all other switches in the same VTP domain.<br />
This switch will drop all VTP advertisements that come from switches that are configured in the same VTP domain.<br />
Adding this switch to the network will cause no disruption in the VTP domain operations if the rest of the switches in the same VTP domain have a higher configuration revision number.***<br />
40<br />
Refer to the exhibit. VTP pruning is enabled in the VTP domain that is shown. How will switch ST-1 handle Layer 2 broadcast traffic originating from host A on switch ST-C?<br />
It will be dropped. It will be forwarded out port Fa0/5 only.***<br />
It will be forwarded out ports Fa0/5 and Fa0/10.<br />
It will be forwarded out ports Fa0/5, Fa0/10, and Fa0/15.<br />
<br />
41 In which mode is a VTP switch operating if it does not allow for the creation of local VLANs but it does accept VLAN updates from other switches in the same domain?<br />
client***<br />
root<br />
server<br />
transparent<br />
<br />
42 The network administrator wants to configure a switch to pass VLAN update information to other switches in the domain but not update its own local VLAN database. Which two steps should the administrator perform to achieve this? (Choose two.)<br />
Reset the VTP counters.***<br />
Configure VTP version 1 on the switch.<br />
Configure the VTP mode of the switch to transparent.<br />
Verify that the switch has a higher configuration revision number.***<br />
Configure the switch with the same VTP domain name as other switches in the network.<br />
43<br />
Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. What configuration should be applied to SW2 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?<br />
Disable VTP pruning on SW2. Configure SW2 in VTP transparent mode.***<br />
Configure SW2 with the VTP domain password.<br />
Configure SW2 as a VTP server with a higher revision number.<br />
44<br />
Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?<br />
All the VLANs were pruned from the trunk port between SW1 and SW2.<br />
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.<br />
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.***<br />
The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.<br />
45<br />
Refer to the exhibit. Switches S2 and S3 are properly connected using an ethernet cable. A network administrator has configured both switches with VTP, but S3 is unable to propagate VLANs to S2. What could be the reason for this?<br />
The VTP configuration revision is different on both switches.<br />
The VTP domains are different on both switches.***<br />
VTP pruning is disabled. VTP v2 is disabled.<br />
46 A wireless LAN access point will convert traffic between which two frame encapsulation types?<br />
802.1 and 802.11<br />
802.3 and 802.11***<br />
802.3 and 802.16<br />
802.5 and 802.16<br />
47 Which parameter is used to uniquely identify one wireless network from another?<br />
SSID***<br />
OFDM<br />
WEP<br />
DSSS<br />
<br />
48 What provides an authentication mechanism for 802.11-based wireless networks?<br />
DSSS<br />
OFDM<br />
SSID<br />
WPA***<br />
<br />
49 Why is MAC address filtering considered a poor choice in securing a WLAN?<br />
Available bandwidth is reduced.<br />
MAC addresses are easily spoofed.***<br />
APs are more susceptible to DoS attacks.<br />
The payload encryption is easily broken.<br />
<br />
50<br />
Refer to the exhibit. Users A and B are reporting intermittent connectivity problems. Pre-installation surveys showed strong signal strength from the AP locations to the client locations. Outside electrical interference has been eliminated. What will fix the problem?<br />
Relocate the APs closer to each other.<br />
Increase the distance between the clients.<br />
Change the channel on AP-B to 6 or 11.***<br />
Place AP-A and AP-B on the same wireless channel. <span style="font-size: large;"><b><br />
</b></span>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-39731994346683907902010-07-04T11:08:00.000-07:002010-07-04T11:11:22.446-07:00CCNA 3 exploration - Final Exam (update - 1)<span style="font-size: large;"><b>CCNA 3 - final exam </b></span><br />
<br />
<br />
<span style="font-size: small;">1<br />
In a three-layer hierarchical network design, which distribution layer function delineates broadcast domains?<br />
routing between VLANs***<br />
aggregating traffic flows<br />
providing redundant links<br />
reducing the network diameter<br />
<br />
2<br />
What two methods can be used to remove MAC address table entries from a switch? (Choose two.)<br />
Power cycle the switch to clear all dynamically learned addresses. ***<br />
The clear switching-tables command will remove statically configured entries.<br />
The clear mac-address-table command will remove statically and dynamically configured table entries.***<br />
The erase flash command will clear all statically configured table entries.<br />
Statically configured MAC addresses will automatically be removed from the address table 300 minutes after the last activity on a switch port.<br />
<br />
<br />
3<br />
Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal?<br />
only hosts A and B<br />
only hosts A, B, and C ***<br />
only hosts A, B, C, and D<br />
only hosts A, B, C, and E<br />
<br />
4<br />
What impact does the use of the mdix auto configuration command have on an Ethernet interface on a switch?<br />
automatically detects duplex settings<br />
automatically detects interface speed<br />
automatically detects copper cable type ***<br />
automatically assigns the first detected MAC address to an interface<br />
<br />
5<br />
Which three statements are correct concerning the default configuration of a new switch? (Choose three.)<br />
It is configured in VTP server mode.***<br />
STP is automatically enabled. ***<br />
The first VTY line is automatically configured to allow remote connections.<br />
VLAN1 is configured with a management IP address.<br />
All switch ports are assigned to VLAN1. ***<br />
The enable password is configured as cisco.<br />
<br />
6<br />
While configuring a new switch, a network administrator configures the switch as an HTTP server. What benefits does this configuration provide?<br />
This allows the switch to host web pages for the network.<br />
This allows remote VPN connections to the switch over the Internet.<br />
This is required if a web server or web farm is attached to the switch.<br />
This allows web-based configuration tools to be used with the switch. ***<br />
7<br />
Refer to the exhibit. The configuration steps that are listed in the exhibit have been entered in switch S1 via the console. Subsequent attempts to telnet to the switch are not successful. What is causing the problem?<br />
The switch must be configured with SSH version 1.<br />
The transport input command must specify Telnet access. ***<br />
The RSA keys must be returned to zero before SSH will permit Telnet access.<br />
The ip domain-name command must also be entered in line configuration mode for the vty lines.<br />
<br />
8<br />
What is a possible impact of setting too short an aging time in the MAC address table of a switch?<br />
overly large address table<br />
unnecessary flooding of packets ***<br />
excessive timeouts of static addresses<br />
impaired ability to dynamically learn new addresses<br />
9<br />
Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?<br />
This entry can only be removed from the MAC address table by a network administrator.<br />
When forwarding a frame to the device with address 0060.5c5b.cd23, the switch does not have to perform a lookup to determine the final destination port.<br />
Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18.<br />
The switch learned this MAC address from the source address in a frame received on Fa0/18.***<br />
10<br />
An administrator is troubleshooting a PC on the network which is suffering from slow and intermittent connectivity. The PC has a ping success rate to the default gateway of less than half the ping attempts. Other PCs on the switch can consistently ping the default gateway. The switch port is configured for auto duplex and the PC is configured for full duplex. What will commonly cause this problem?<br />
The PC is set to full duplex. The switch port fails to autonegotiate the duplex setting and defaults to half duplex, which causes a duplex mismatch. ***<br />
The switch traffic is exceeding available frame buffers. The result is that frames are being dropped.<br />
The PC and the default gateway have different bandwidth Ethernet ports.<br />
The default gateway is not on the same switch that the PC is.<br />
11<br />
Using the command copy tftp:backup.cfg startup-config, an administrator downloaded a saved configuration from a TFTP server to a switch. Why does the administrator not detect any changes in the switch configuration after the download completes?<br />
The command should have been copy startup-config tftp:backup.cfg.<br />
A backup configuration from a TFTP server cannot be copied directly into the startup-config.<br />
The command copy running-config startup-config should be used to save the changes on the switch.<br />
Downloading to the startup-config requires the switch to be reloaded in order for the configuration to take effect. ****<br />
12<br />
Refer to the exhibit. The teacher host is connected to port Fa0/7 on switch STW. A student has decided to share access to the Internet by attaching a hub and laptop to STW as shown. What will be the result of the student making this connection?<br />
The Fa0/7 port of STW will be shutdown.<br />
The student will gain full access to the Internet.<br />
Both the teacher and student will be able to receive data but only the teacher will be able to send.<br />
The frames from the laptop will be dropped, but the teacher host will maintain connectivity with the network. ***<br />
13<br />
Why is it advisable that a network administrator use SSH instead of Telnet when managing switches?<br />
SSH uses TCP whereas Telnet does not.<br />
SSH encrypts only the username and password when logging in.<br />
SSH encrypts all remote management communications whereas Telnet does not. ***<br />
SSH sends a clear text message steam which reduces the bandwidth use for management.<br />
14<br />
Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campus environment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks. Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. How can the convergence time be reduced?<br />
Increase the capacity of the distribution and core trunk links to 10 Gb/s.<br />
Add a trunk link that directly connects D1 and D2.<br />
Use Layer 3 switching on the core switch.<br />
Implement Rapid Spanning Tree Protocol. ***<br />
15<br />
Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?<br />
Cat-A<br />
Cat-B<br />
Cat-C ***<br />
Cat-D<br />
<br />
16<br />
Refer to the exhibit. How is port Gi1/1 on SWT-A functioning in the spanning-tree topology?<br />
It is sending and receiving data frames.***<br />
It is receiving BPDUs, but not sending data frames.<br />
It is participating in the election process by forwarding the BPDUs it receives.<br />
It is receiving BPDUs and populating the MAC address table, but not sending data.<br />
17<br />
Which value determines if a switch becomes the central point of reference in the spanning tree topology?<br />
lowest bridge ID ***<br />
highest revision number<br />
lowest numeric IP address<br />
highest numeric MAC address<br />
<br />
18<br />
What is the purpose of the Spanning Tree algorithm?<br />
It propagates VLAN configurations to other switches.<br />
It restricts broadcast packets to a single VLAN.<br />
It segments a network into multiple broadcast domains.<br />
It prevents loops in a switched network with redundant paths.***<br />
19<br />
Which STP port type can only appear once on a segment, and must be present in order for traffic to flow on that segment?<br />
non-root port<br />
disabled port<br />
designated port ***<br />
non-designated port<br />
20<br />
Which type of traffic can still be received on a switch interface that is in STP blocking mode?<br />
BPDU frames ***<br />
multicast frames<br />
broadcast frames<br />
Layer 3 packets<br />
21<br />
Refer to the exhibit. Each switch is configured to participate in STP for VLANs 1, 10, 20, and 30. Which switch will become the root for VLAN 20?<br />
A<br />
B<br />
C<br />
D ***<br />
22<br />
Refer to the exhibit. All edge ports are configured with the spanning-tree portfast command. Host1 is recently connected to port Fa0/1 on switch SW1 . Which statement is true about the status of port Fa0/1?<br />
The port will transition into blocking state.<br />
The port will transition immediately into forwarding state.***<br />
The port will transition into blocking state and then immediately into forwarding state.<br />
The port will transition into blocking state and immediately transition through the listening and learning states.<br />
23<br />
Which statement describes the use of voice VLANs in Cisco IP telephony?<br />
The voice VLAN carries both tagged and untagged traffic.<br />
The voice VLAN carries untagged traffic having special QoS markings.<br />
The voice VLAN must be configured on the switch port to which the IP phone attaches.***<br />
Data and voice frames are tagged with same VLAN ID between the IP phone and the switch when a voice VLAN is configured.<br />
24<br />
Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message?<br />
only computer 4<br />
computer 3 and RTR-A***<br />
computer 4 and RTR-A<br />
computer 1, computer 2, computer 4, and RTR-A<br />
computer 1, computer 2, computer 3, computer 4, and RTR-A<br />
all of the computers and the router<br />
25<br />
What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?<br />
only the management VLAN<br />
all VLANs except the extended range VLANs<br />
all VLANs except 1 and 1002-1005<br />
all VLANs ***<br />
26<br />
Refer to the exhibit. What would happen if the network administrator moved the network cable of Host A from interface Fa0/1 to Fa0/3 on switch SW1?<br />
Host A remains a member of VLAN 10, because the router is routing traffic between VLANs.<br />
Host A is no longer a member of VLAN 10, because port Fa0/3 has been manually assigned to VLAN 30. ***<br />
Host A remains a member of VLAN 10, because the switch provides dynamic VLAN assignment for the port.<br />
Host A maintains connectivity to all members of VLAN 10, because it is connected to the same physical network.<br />
Host A is no longer a member of VLAN 10, but because port Fa0/3 was unused, it is now a member of VLAN 1.<br />
27<br />
Refer to the exhibit. The devices in the network are operational and configured as indicated in the exhibit. However, hosts B and D cannot ping each other. What is the most likely cause of this problem?<br />
The link between the switches is up but not trunked.<br />
The Fa0/11 interface of Switch1 is not configured as a trunk.<br />
Hosts B and D are configured with IP addresses from different subnets.***<br />
VLAN 20 and VLAN 30 are not allowed on the trunk between the switches.<br />
<br />
28<br />
Refer to the exhibit. What is true of the configuration of switch S1?<br />
A Cisco proprietary protocol is in use for ports Fa0/1 and Fa0/3.<br />
Switch ports Fa0/1 and Fa0/3 have been configured with the switchport mode access command.<br />
Untagged frames received on ports Fa0/1 and Fa0/3 will be placed on VLAN 1.<br />
Switch ports Fa0/1 and Fa0/3 are configured to carry data from multiple VLANs.***<br />
29<br />
Refer to the exhibit. How does SW1 manage traffic coming from Host A?<br />
SW1 drops the traffic because it is untagged.<br />
SW1 leaves the traffic untagged and forwards it over the trunk. ***<br />
SW1 tags the traffic with the lowest VLAN ID value and forwards it over the trunk link.<br />
SW1 encapsulates the traffic with 802.1Q encapsulation and forwards it over the trunk link.<br />
30<br />
Refer to the exhibit. Which two statements are true about the operation of the interfaces? (Choose two.)<br />
Incoming traffic with VLAN ID 0 is processed by interface fa0/0.<br />
Incoming traffic that has a VLAN ID of 2 is processed by subinterface fa0/0.2.***<br />
Both subinterfaces remain up with line protocol up, even if fa0/0 line protocol is down.<br />
Subinterfaces use unique MAC addresses by adding the 802.1Q VLAN ID to the hardware address.<br />
Traffic inbound on this router is processed by different subinterfaces, depending on the VLAN from which the traffic originated. ***<br />
31<br />
Refer to the exhibit. A company has acquired a new office in a campus environment. Switches in the existing office and the new office are directly connected by a trunk link. The VLANs and IP addressing are setup as shown in the exhibit. The computers in each office are not able to ping each other. What will fix the problem?<br />
Use an access link between S2 and S3.<br />
Connect S2 and S3 to a common router.***<br />
Set the subnet mask in the new office to /24.<br />
Configure the new office default gateway to 172.17.10.1<br />
Change the port assignments in the new office to a different VLAN.<br />
32<br />
Refer to the exhibit. If switch SW1 is configured with the four VLANs as shown in the exhibit, how many physical interfaces are needed on router R1 to configure inter-VLAN routing using subinterfaces?<br />
zero<br />
one ***<br />
two<br />
four<br />
<br />
33<br />
Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.161. What will the router do with this packet?<br />
The router will drop the packet.***<br />
The router will forward the packet out interface FastEthernet 0/1.1.<br />
The router will forward the packet out interface FastEthernet 0/1.2.<br />
The router will forward the packet out interface FastEthernet 0/1.3.<br />
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.<br />
34<br />
A network administrator configures a switch port with the command switchport mode dynamic auto. What is the resulting behavior of the switch port?<br />
The switch port is able to trunk if the remote switch port is set to auto.<br />
The switch port is able to trunk if the remote switch port is set to desirable.***<br />
The switch port will be disabled if it is unable to successfully negotiate trunking.<br />
A successful trunk will be established if the remote switch is non-Cisco but the port is configured for trunking.<br />
35<br />
Refer to the exhibit. Which three options correctly identify information that could be associated with this output?(Choose three.)<br />
Interface FastEthernet3/0/0 is subinterfaced. ***<br />
A non-proprietary trunking protocol is in use. ***<br />
The configuration is appropriate for a router-on-a-stick network design.<br />
A shutdown command has been applied to interface FastEthernet3/0/0. ***<br />
Interface FastEthernet3/0/0.3 is mapped to the default management VLAN.<br />
An IP address should be applied to FastEthernet3/0/0 for correct data routing.<br />
36<br />
Refer to the exhibit. Users complain that they do not have connectivity to the web server that is connected to SW1. What should be done to remedy the problem?<br />
Allow all VLANs on the trunk link.<br />
Configure VLAN 100 as the native VLAN for SW1.***<br />
Configure the trunk port in trunk mode on SW1.<br />
Attach the web server to a router and configure inter-VLAN routing.<br />
37<br />
Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP address should be assigned to this new host?<br />
192.168.1.11 /28<br />
192.168.1.22 /28 ***<br />
192.168.1.33 /28<br />
192.168.1.44 /28<br />
192.168.1.55 /28<br />
<br />
38<br />
Refer to the exhibit. A network administrator has segmented the network into two VLANs and configured Router1 for inter-VLAN routing. A test of the network, however, shows that hosts on each VLAN can only access local resources and not resources on the other VLAN. What is the most likely cause of this problem?<br />
Switch port Fa0/1 is not trunking. ***<br />
Router interface Fa0/0 is possibly down.<br />
No routing protocol is configured on Router1.<br />
One of the router subinterfaces is possibly down.<br />
39<br />
Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2. Hosts A, B, C, and D are correctly configured with IP addresses in the subnet range for VLAN 50. Host A can communicate with host B, but cannot communicate with host C or host D. What is the cause of this problem?<br />
There is a native VLAN mismatch.<br />
The Fa0/11 interface of Switch1 is not configured as a trunk.<br />
The link between Switch1 and Switch2 is up but not trunked.<br />
VLAN 50 is not allowed on the trunk link between Switch1 and Switch2. ***<br />
40<br />
Which configuration changes will increment the configuration revision number on the VTP server?<br />
configuring trunk links on the VTP server<br />
configuring or changing the VTP password<br />
configuring or changing the VTP domain name<br />
configuring or changing the VTP version number<br />
configuring or deleting a VLAN or creating a VLAN name ***<br />
41<br />
The network administrator wants to configure a switch to pass VLAN update information to other switches in the domain but not update its own local VLAN database. Which two steps should the administrator perform to achieve this? (Choose two.)<br />
Reset the VTP counters.<br />
Configure VTP version 1 on the switch.<br />
Configure the VTP mode of the switch to transparent. ***<br />
Verify that the switch has a higher configuration revision number.<br />
Configure the switch with the same VTP domain name as other switches in the network.***<br />
42<br />
Refer to the exhibit. VLAN 10 has been configured on the VTP server. Users who are assigned to VLAN 10 are connected as shown in the exhibit. On the basis of the outputs that are provided, which group of users will be able to communicate with the users on VLAN 10 on SW1?<br />
all the users who are connected only to SW2<br />
users on VLAN 10 who are connected only to SW3***<br />
users on VLAN 10 who are connected only to SW4<br />
users on VLAN 10 who are connected to both SW3 and SW4<br />
<br />
43<br />
Refer to the exhibit. Switches S2 and S3 are properly connected using an ethernet cable. A network administrator has configured both switches with VTP, but S3 is unable to propagate VLANs to S2. What could be the reason for this?<br />
The VTP configuration revision is different on both switches.<br />
The VTP domains are different on both switches. ****<br />
VTP pruning is disabled.<br />
VTP v2 is disabled.<br />
44<br />
Refer to the exhibit. The VTP domain has been configured as shown in the exhibit. The network technician accidentally configured the VTP server as a VTP client. After the technician reloaded the switches, all users in the VTP domain started to complain that they lost connectivity to the users on the same VLANs that are connected to other switches. What should be done in the future to prevent losing all VLAN configurations in a VTP domain?<br />
Configure all switches in VTP transparent mode and copy the VLAN configuration into flash.<br />
Configure all switches in the network as VTP clients and copy the VLAN configuration into NVRAM.<br />
Create a new domain and configure a second switch as a VTP server to take over in case of a primary VTP server failure.***<br />
In the same domain, configure a second switch as a VTP server to take over in case of a primary VTP server failure.<br />
45<br />
Refer to the exhibit. Which two settings show the default value of VTP configuration on a Cisco 2960 switch? (Choose two.)<br />
revision number***<br />
existing VLANs<br />
operating mode<br />
domain name<br />
pruning mode ***<br />
46<br />
What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)<br />
requires less equipment<br />
provides improved range** *<br />
permits increased data rates***<br />
has a single-input and a single-output<br />
needs no hardware upgrade for compatibility<br />
47<br />
Which parameter is used to uniquely identify one wireless network from another?<br />
SSID ***<br />
OFDM<br />
WEP<br />
DSSS<br />
48<br />
Which security protocol or measure would provide the greatest protection for a wireless LAN?<br />
WPA2 ***<br />
cloaking SSIDs<br />
shared WEP key<br />
MAC address filtering<br />
49<br />
Which method establishes an administrative connection for configuring the Linksys WRT300N wireless access point?<br />
Associate with the access point and then open a HyperTerminal session with the access point.<br />
Physically connect to the access point and then reboot the computer to launch the configuration software.<br />
From a computer in the same IP subnet as the access point, enter the default IP address of the access point in a web browser. ***<br />
Modify the TCP/IP properties of the computer connected to the access point so that it exists on the same network, and then reboot your computer to establish a connection.<br />
50<br />
Refer to the exhibit. Users A and B are reporting intermittent connectivity problems. Pre-installation surveys showed strong signal strength from the AP locations to the client locations. Outside electrical interference has been eliminated. What will fix the problem?<br />
Relocate the APs closer to each other.<br />
Increase the distance between the clients.<br />
Change the channel on AP-B to 6 or 11.***<br />
Place AP-A and AP-B on the same wireless channel.</span>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com2tag:blogger.com,1999:blog-3628914570771483194.post-52468772578369421262010-05-08T11:35:00.000-07:002010-05-08T11:35:28.748-07:00CCNA 1 Discovery Version 4.0 Module 5<span style="font-size: small;"></span><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><span><b><span>Module </span></b><span><b>5 - Exam Answers</b></span></span></span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><span><span><b> </b></span></span></span><span class="Apple-style-span" style="line-height: 16px;">1. How large are IPv4 addresses?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
8 bits<br />
16 bits<br />
**<span style="margin: 0px; padding: 0px;">32 bits</span><br />
64 bits<br />
128 bits<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">2. Refer to the graphic. A user at the workstation cannot connect to the server. All cables have been tested and are working and all devices have IP addressing. However, the user cannot ping the server. What is causing the problem?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
The router interface does not have a default gateway.<br />
The switch does not have an IP address and default gateway.<br />
<span style="margin: 0px; padding: 0px;">**The workstation and server are on different logical networks.</span><br />
The workstation does not know the MAC address of the switch.<br />
<a href="" name="more"></a><br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">3. Which part of an IP address identifies a specific device on a network?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
first two octets<br />
third and fourth octets<br />
network portion<br />
**<span style="margin: 0px; padding: 0px;">host portion<br />
</span>only the fourth octet<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">4. Given a host with the IP address 172.32.65.13 and a default subnet mask, to which network does the host belong?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
172.32.65.0<br />
172.32.65.32<br />
<span style="margin: 0px; padding: 0px;">**172.32.0.0</span><br />
172.32.32.0<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">5. Which default subnet mask provides the most host bits?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**255.0.0.0</span><br />
255.255.0.0<br />
255.255.255.0<br />
255.255.255.252<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">6. How many bits are available for Class B host IP addresses using a default subnet mask?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
4<br />
8<br />
<span style="margin: 0px; padding: 0px;">**16</span><br />
24<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">7. How many usable hosts are available given a Class C IP address with the default subnet mask?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
**<span style="margin: 0px; padding: 0px;">254</span><br />
255<br />
256<br />
510<br />
511<br />
512<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">8. Assuming a default mask, which portion of the IP address 175.124.35.4 represents the host?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
175.124<br />
<span style="margin: 0px; padding: 0px;">**35.4</span><br />
.4<br />
124.35.4<br />
175.124.35<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">9. Which of the following are private IP addresses? (Choose three.)</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**10.1.1.1</span><br />
172.32.5.2<br />
192.167.10.10<span style="margin: 0px; padding: 0px;"> </span></span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><span style="margin: 0px; padding: 0px;"> **172.16.4.4<br />
**192.168.5.5</span><br />
224.6.6.6<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">10. What destination IP address is used in a unicast packet?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
**a specific host<br />
a group of hosts<br />
the default gateway<br />
the network broadcast address<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">11. What is the destination MAC address in a multicast Ethernet frame?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
the MAC address of the sending host<br />
the MAC address of the destination host<br />
**<span style="margin: 0px; padding: 0px;">an address that begins with 01-00-5E in hexadecimal</span><br />
a 48-bit hexadecimal address expressed as FF-FF-FF-FF-FF-FF<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">12. Yvonne is talking to her friend on the phone. What type of message is this?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
broadcast<br />
simulcast<br />
multicast<br />
<span style="margin: 0px; padding: 0px;">**unicast</span><br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">13. What information must be included within a unicast message for it to be delivered on an Ethernet network?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
MAC and IP addresses for the default router<br />
IP address and subnet mask of the default gateway<br />
MAC and IP addresses that correspond to a destination group <br />
<span style="margin: 0px; padding: 0px;">**MAC and IP addresses that correspond to a specific destination host</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">14. A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
The configuration is permanent and nothing changes.<br />
The address lease is automatically renewed until the PC is returned.<br />
**<span style="margin: 0px; padding: 0px;">The address is returned to the pool for reuse when the lease expires.</span><br />
The configuration is held by the server to be reissued when the PC is returned.<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">15. Which type of server dynamically assigns an IP address to a host?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"> ARP<br />
<span style="margin: 0px; padding: 0px;">**DHCP</span><br />
DNS<br />
RARP<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">16. Which three statements describe a DHCP Discover message? (Choose three.)</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
The source MAC address is 48 ones (FF-FF-FF-FF-FF-FF).<br />
<span style="margin: 0px; padding: 0px;">**The destination IP address is 255.255.255.255.</span><br />
The message comes from a server offering an IP address.<br />
<span style="margin: 0px; padding: 0px;">**The message comes from a client seeking an IP address.<br />
**All hosts receive the message, but only a DHCP server replies.</span><br />
Only the DHCP server receives the message.<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">17. Refer to the graphic. A host connects to a Linksys integrated router that is also a DHCP server and receives an IP address from it. Which address does the host need to access the ISP and the Internet?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
IP address of the destination host<br />
public gateway IP address of the ISP<br />
external IP address of the integrated router that connects to the ISP<br />
<span style="margin: 0px; padding: 0px;">*internal IP address of the integrated router that connects to the local network</span><br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">18. Which statement is true concerning private IP addresses?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
ensures that two networks separated by the Internet use unique IP network numbers<br />
allows internal hosts to communicate with servers across the Internet<br />
<span style="margin: 0px; padding: 0px;">**solves the issue of a finite number of available public IP addresses</span><br />
allows for ISPs to be able to quickly determine network location<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">19. What is one of the purposes of NAT?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
filters network traffic based on IP address ranges<br />
<span style="margin: 0px; padding: 0px;">**prevents external users from detecting the IP addresses used on a network<br />
</span>inspects traffic that might be harmful or used in an attack against the network<br />
translates IP addresses into easy-to-remember domain names<br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">20. Which two statements describe packets that are sent through a Linksys integrated router using NAT? (Choose two.)</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
Packets that are sent to any destination need to be translated.<br />
Packets that are sent to hosts on the same network need to be translated.<br />
<span style="margin: 0px; padding: 0px;">**Packets that are sent to a destination outside the local network need to be translated.</span><br />
Packets that are sent to a destination outside a local network do not need to be translated.<br />
<span style="margin: 0px; padding: 0px;">**Packets that are sent between hosts on the same local network do not need to be translated.</span><br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;">21. Refer to the graphic. NAT and DHCP are installed on the Linksys integrated router. Which IP address is most likely to be assigned to the local computer, Host1?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**10.0.0.17<br />
</span>128.107.1.2<br />
192.135.250.0<br />
209.165.201.1</span></span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-67485164572580668322010-05-05T01:29:00.000-07:002010-05-05T01:29:49.177-07:00CCNA 1 Discovery Version 4.0 Module 4<div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span style="line-height: 16px;"> </span><span><b><span>Module </span></b><span><b>4 - Exam Answers</b></span></span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">1. Which definition describes the term Internet?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"> <br />
a group of PCs connected together on a LAN <br />
a group of PCs connected together by an ISP </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"> **<span style="margin: 0px; padding: 0px;">a network of networks that connects countries around the world</span> <br />
a worldwide collection of networks controlled by a single organization <br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">2. What type of connection point is a point of presence (POP)? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
between a client and a host <br />
between two local networks <br />
between a computer and a switch <br />
**<span style="margin: 0px; padding: 0px;">between an ISP and a home-based LAN</span> <br />
<a href="" name="more"></a><br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">3. What is the term for the group of high-speed data links that interconnect ISPs? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
Internet LAN <br />
ISP backbone <br />
Internet gateways <br />
Internet providers <br />
**<span style="margin: 0px; padding: 0px;">Internet backbone</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">4. Which device can act as a router, switch, and wireless access point in one package? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
hub <br />
bridge <br />
modem <br />
repeater <br />
**<span style="margin: 0px; padding: 0px;">ISR</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">5. What are three characteristics of business class ISP service? (Choose three.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
**<span style="margin: 0px; padding: 0px;">fast connections <br />
**extra web space</span> <br />
free Windows upgrade <br />
cheapest cost available to all users <br />
<span style="margin: 0px; padding: 0px;">**additional e-mail accounts</span> <br />
replacement hardware at no cost <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">6. What is a major characteristic of asymmetric Internet service? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
Download speeds and upload speeds are equal. <br />
Download speeds are slower than upload speeds. <br />
**<span style="margin: 0px; padding: 0px;">Upload speeds and download speeds are different.</span> <br />
Upload speeds and download speeds are irrelevant. <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">7. Which three elements are required to successfully connect to the Internet? (Choose three.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**an IP address</span> <br />
file sharing enabled <br />
<span style="margin: 0px; padding: 0px;">**a network connection</span> <br />
server services enabled <br />
<span style="margin: 0px; padding: 0px;">**access to an Internet service provider</span> <br />
an address obtained directly from the RIR <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">8. What term describes each router through which a packet travels when moving between source and destination networks? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
NOC <br />
ISP <br />
**<span style="margin: 0px; padding: 0px;">hop</span> <br />
segment <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">9. What does the tracert command test? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
NIC functionality <br />
the ISP bandwidth <br />
**<span style="margin: 0px; padding: 0px;">the network path to a destination</span> <br />
the destination application functionality <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">10. What type of end-user connectivity requires that an ISP have a DSLAM device in their network? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
analog technology <br />
cable modem technology <br />
<span style="margin: 0px; padding: 0px;">digital subscriber line technology</span> <br />
wireless technology <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">11. Why would an ISP require a CMTS device on their network? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
**<span style="margin: 0px; padding: 0px;">to connect end users using cable technology</span> <br />
to connect end users using analog technology <br />
to connect end users using wireless technology <br />
to connect end users using digital subscriber line technology <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">12. Refer to the graphic. What type of cabling is shown? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
STP <br />
UTP <br />
coax <br />
<span style="margin: 0px; padding: 0px;">**fiber</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">13. Refer to the graphic. What type of cabling is shown? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
STP <br />
**<span style="margin: 0px; padding: 0px;">UTP</span> <br />
coax <br />
fiber <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">14. Which two places are most appropriate to use UTP cabling? (Choose two.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
between buildings <br />
<span style="margin: 0px; padding: 0px;">**in a home office network</span> </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"> where EMI is an issue <br />
in a cable TV network <br />
<span style="margin: 0px; padding: 0px;">**inside a school building</span> <br />
in a manufacturing environment with hundreds of electrical devices <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">15. What does adherence to cabling standards ensure? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
data security <br />
no loss of signal <br />
no electromagnetic interference <br />
**<span style="margin: 0px; padding: 0px;">reliable data communications</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">16. Refer to the graphic. What type of cable is shown?</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"> <span style="margin: 0px; padding: 0px;"> </span></span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><span style="margin: 0px; padding: 0px;"> **crossover</span> <br />
eight coax channels <br />
multimode fiber <br />
single-mode fiber <br />
straight-through <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">17. What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling? </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
ST <br />
BNC <br />
RJ-11 <br />
<span style="margin: 0px; padding: 0px;">**RJ-45</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">18. Which two characteristics describe copper patch panels? (Choose two.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
uses RJ-11 jacks <br />
<span style="margin: 0px; padding: 0px;">**uses RJ-45 jacks</span> <br />
supports only data transmissions <br />
<span style="margin: 0px; padding: 0px;">**allows quick rearrangements of network connections</span> <br />
forwards transmissions based on MAC addresses <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">19. What are two advantages of cable management? (Choose two.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
requires no preplanning <br />
**<span style="margin: 0px; padding: 0px;">aids in isolation of cabling problems <br />
**protects cables from physical damage</span> <br />
provides compliance with future standards <br />
provides a short-term solution for cable installation <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">20. What are two common causes of signal degradation when using UTP cabling? (Choose two.) </span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><br />
installing cables in conduit <br />
**<span style="margin: 0px; padding: 0px;">having improper termination</span> <br />
losing light over long distances <br />
installing low quality cable shielding <br />
<span style="margin: 0px; padding: 0px;">**using low quality cables or connectors</span> <br />
<br />
</span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;">21. What are three commonly followed standards for constructing and installing cabling? (Choose three.) <span style="margin: 0px; padding: 0px;"> </span></span></span></div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="color: black; font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span style="line-height: 16px;"><span style="margin: 0px; padding: 0px;"> **pinouts <br />
**cable lengths</span> <br />
connector color <br />
<span style="margin: 0px; padding: 0px;">**connector types</span> <br />
cost per meter (foot) <br />
tensile strength of plastic insulator</span></span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-28441014424093860972010-05-05T01:08:00.001-07:002010-05-05T01:08:41.280-07:00CCNA 4 Exploration v4.0 - Module 8<div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><span><span><span><b>Chapt</b></span><span><b><span>er 8 - Exam Answers</span></b></span></span></span></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Which two pieces of information are typically found on a logical network diagram? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
cable types<br />
connector types<br />
• interface identifiers<br />
• DLCI for virtual circuits<br />
operating system versions<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Excessive broadcasts are generally a symptom of a problem at which layer?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
physical<br />
• data link<br />
network<br />
transport<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. What is one example of a physical layer problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
incorrect encapsulation<br />
incorrect STP configuration<br />
incorrect ARP mapping<br />
• incorrect clock rate<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Which two components should be taken into consideration when establishing a network baseline? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• information about the network design<br />
IP addressing allocation on the network<br />
requirements about the service provider setup<br />
requirements for access control lists to regulate traffic<br />
• expected performance under normal operating conditions<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Refer to the exhibit. Which two steps should be taken during the process of creating network documentation? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Record the information about the devices discovered in the Campus network only.<br />
• Record the information about the devices discovered in the entire network, including the remote locations.<br />
• Transfer any information about the devices from the network configuration table that corresponds to a component of the topology diagram.<br />
Transfer only the Layer 2 and Layer 3 information about the devices from the network configuration table that corresponds to a component of the topology diagram.<br />
Transfer the recorded information about the devices from the network configuration table gathered during peak network utilization that corresponds to a component of the topology diagram.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Which two statements are true concerning logical networking models? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
TCP/IP splits the lowest layer of the OSI model into two separate layers.<br />
• The top layer of the TCP/IP model combines the functions of the top three OSI layers.<br />
Troubleshooting with the TCP/IP model requires different techniques than with the OSI model.<br />
The network access layer is responsible for exchanging packets between devices on a TCP/IP network.<br />
The Internet layer provides communication between applications, such as FTP, HTTP, and SMTP on separate hosts.<br />
• The TCP/IP network access layer corresponds to the OSI physical and data link layers.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Clients across the company are reporting poor performance across all corporate applications running in the data center. Internet access and applications running across the corporate WAN are performing normally. The network administrator observes a continual broadcast of random meaningless traffic (jabber) on the application server LAN in the data center on a protocol analyzer. How should the administrator start troubleshooting?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The jabber in the data center indicates a local physical layer problem. Use the protocol analyzer to determine the source of the jabber, and then check for a recent NIC driver update or bad cabling.<br />
Because all clients are experiencing application problems, the administrator should use a top-down approach with the<br />
application servers in the data center.<br />
The scope of the problem indicates a likely routing or spanning-tree problem. Begin by checking routing tables, and follow up using appropriate STP show commands to find a loop if routing is working normally.<br />
Poll the staff to determine if any recent changes have been made. Back out all the changes one by one until the error condition is fixed.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Which troubleshooting approach is suggested for dealing with a complex problem that is suspected of being caused by faulty network cabling?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• bottom up<br />
top down<br />
divide and conquer<br />
middle out<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. A technician has been asked to make several changes to the configuration and topology of a network and then determine the outcome of the changes. What tool can be used to determine the overall effect caused by the changes?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• baselining tool<br />
knowledge base<br />
protocol analyzer<br />
cable tester<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. A technician has been asked to troubleshoot an existing switched network but is unable to locate documentation for the VLAN configuration. Which troubleshooting tool allows the technician to map and discover VLAN and port assignments?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
cable analyzer<br />
• network analyzer<br />
protocol analyzer<br />
knowledge base<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Refer to the exhibit. Users on the Internal LAN are unable to connect to the www server. The network administrator pings the server and verifies that NAT is functioning correctly. Which OSI layer should the administrator begin to troubleshoot next?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
physical<br />
data link<br />
network<br />
• application<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. When gathering symptoms for troubleshooting a network problem, which step could result in getting an external administrator involved in the process?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
narrowing the scope<br />
gathering symptoms from suspect devices<br />
analyzing existing symptoms<br />
• determining ownership<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Refer to the exhibit. Which three pieces of information can be determined by analyzing the output shown? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• A carrier detect signal is present.<br />
• Keepalives are being received successfully.<br />
Default encapsulation is used on this serial link.<br />
Packets passing this interface cannot exceed 1 KB in size.<br />
The reliability of this link is very low.<br />
The LCP negotiation phase is complete.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Refer to the exhibit. Users at Branch B are reporting trouble accessing a corporate website running on a server that is located at HQ. HQ and Branch A users can access the website. R3 is able to ping 10.10.10.1 successfully but not 10.10.10.2. The users at Branch B can access servers at Branch A. Which two statements are true aboutthe troubleshooting efforts? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The web server should be tested for an application layer problem.<br />
Frame Relay at R3 and R2 should be tested to narrow the scope of the problem.<br />
• The fact that users at Branch A are working normally proves that there is no problem at R2.<br />
An ACL entry error could cause the failure at Layer 4 in either R3 or R2.<br />
The successful ping from R3 to R1 proves that the WAN is functioning normally. Therefore, the problem has to be in the upper layers.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Users are complaining of very long wait times to access resources on the network. The show interface command reveals collision counts far above the network baseline. At which OSI layer should the administrator begin troubleshooting?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
application<br />
transport<br />
network<br />
data link<br />
• physical<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. Encapsulation errors from mismatched WAN protocols on a serial link between two routers indicate a problem at which OSI layer?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
physical<br />
• data link<br />
network<br />
transport<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. What combination of IP address and wildcard mask should be used to specify only the last 8 addresses in the subnet 192.168.3.32/28?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
192.168.3.32 0.0.0.7<br />
192.168.3.32 0.0.0.15<br />
• 192.168.3.40 0.0.0.7<br />
192.168.3.40 0.0.0.15<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. A network administrator has received complaints that users on a local LAN can retrieve e-mail from a remote e-mail server but are unable to open web pages on the same server. Services at which two layers of the OSI model should be investigated during the troubleshooting process? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
physical layer<br />
data link layer<br />
network layer<br />
• transport layer<br />
• application layer<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Information about which OSI layers of connected Cisco devices can be verified with the show cdp neighbors command?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
All layers<br />
• Layer 1, Layer 2, and Layer 3<br />
Layer 1, Layer 2, Layer 3, and Layer 4<br />
Layer 6 and Layer 7<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Which three approaches should be used when attempting to gather data from users for troubleshooting? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Determine fault.<br />
Get to know the user to build trust.<br />
• Obtain information by asking simple pertinent questions.<br />
Impress the user with use of technical language and skills.<br />
• Determine if the problem is related to time or a specific event.<br />
• Determine if the user can re-create the problem or events leading to the problem. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-79179509942923504332010-05-03T12:01:00.000-07:002010-05-03T12:01:24.011-07:00CCNA 4 Exploration v4.0 - Module 7<div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><span><span><b>Chapt</b></span><span><b><span>er 7 - Exam Answers</span></b></span></span></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Why is it important to record baseline measurements of a prototype network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Test results show security weaknesses after the baseline tests are run.<br />
The baseline is the point at which the network is operating at its fullest potential.<br />
Baseline measurements define a point at which network traffic has exceeded the designed capabilities of the network.<br />
• Test results are compared to the baseline to see how the test conditions increase processor use or decrease available bandwidth.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Refer to the exhibit. During prototype testing, verification of VLAN connectivity is being performed. Based on the information shown, what command produced the output?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
show spanning-tree<br />
• show interfaces trunk</div><div style="font-family: "Trebuchet MS",sans-serif;">show cdp neighbors<br />
show interfaces<br />
show ip interface brief<br />
<br />
3. How do designers decide which network functions need to be included in the prototype test?<br />
• They select the functions that align with the business goals.<br />
They select the functions that occur at the network core.<br />
They select the functions that do not exist in the existing network.<br />
They select the functions from a list of generic network operations.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Refer to the exhibit. A network administrator has been given the task of creating a design for a temporary classroom building that is to be set up outside an overcrowded school. In testing the prototype, it is found that the student PC cannot ping the teacher PC. All the switch interfaces are active and connected properly, as is interface Fa0/0 of the router. Given that only the commands shown have been added to the router configuration, what is the source of the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The IP settings on the student PC are incorrect.<br />
The default gateway on the teacher PC is misconfigured.<br />
The router Fa0/0 interface has not been configured as a VLAN trunk.<br />
The Fa0/0 physical interface has not been configured with an IP address and subnet mask.<br />
The administrator forgot to configure a routing protocol to allow the ping packets to reach the teacher PC subnet.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Refer to the exhibit. What two measures can be taken to address the areas of weakness circled in the network design? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Provide redundant connections to all end users.<br />
Add another core switch to increase redundancy.<br />
• Add a switch in the server block connecting the server farm to each core switch.<br />
Add an additional switch to the DMZ and direct links from the new switch to the core switches.<br />
• Provide a redundant firewall router connecting to a second ISP, the core switches, and the DMZ.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Refer to the exhibit. After all the interfaces have stabilized, what is the spanning-tree state of all the enabled interfaces of SW11?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
discarding<br />
Forwarding<br />
learning<br />
listening<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. A network engineer has decided to pilot test a portion of a new network design rather than rely on a prototype for proof-of-concept. What are two advantages of pilot testing a design concept? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The test network experiences real-world network traffic.<br />
Users within the enterprise are not affected by the test.<br />
• Network response can be tested in unplanned and unpredictable situations.<br />
Unlikely failure conditions can be conveniently tested.<br />
Network response can be tested in a highly controlled simulated environment.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Refer to the exhibit. During prototype testing of the Cisco network shown, connectivity must be verified. Assuming all connections are working and CDP is enabled on all devices and interfaces, on which device was the command issued?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• R1</div><div style="font-family: "Trebuchet MS",sans-serif;">S1<br />
R3<br />
S2<br />
R5<br />
S3<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Switch port Fa0/24 was previously configured as a trunk, but now it is to be used to connect a host to the network. How should the network administrator reconfigure switch port Fa0/24?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Use the switchport mode access command from interface configuration mode.<br />
Enter the switchport nonegotiate command from interface configuration mode.<br />
Administratively shut down and re-enable the interface to return it to the default.<br />
• Enter the no switchport mode trunk command in interface configuration mode.<br />
Use the switchport access vlanvlan number command from interface configuration mode to remove the port from the trunk and add it to a specific VLAN.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. A network technician is performing an initial installation of a new switch in the east wing. The technician removes the switch from the box, makes the connections to the network, and adds the configuration shown. The technician notifies the network administrator that the switch has been installed. When the network administrator at the home office attempts to telnet to the switch from host 192.168.0.1, the connection fails. What action should the network technician take?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Add an enable password to the switch.<br />
• Add a default gateway to the switch configuration.<br />
Configure the switch with an IP access list to permit the host connection.<br />
Enable the physical interfaces of the switch with the no shutdown command.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Refer to the exhibit. The redundant paths are of equal bandwidth and EIGRP is the routing protocol in use. Which statement describes the data flow from Server to PC2?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• EIGRP load balances across the R3 to R1 and R3 to R2 links.<br />
EIGRP load balances across the R1 to Switch3 and R2 to Switch3 paths.<br />
EIGRP load balances across the Switch1 to Switch3 and Switch1 to Switch2 paths.<br />
EIGRP does not load balance in this topology.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. In the router command encapsulation dot1q 10, what does the number 10 represent?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
the metric used for a particular route<br />
• the number of the VLAN associated with the encapsulated subinterface<br />
the priority number given to the device for the election process<br />
the number that must match the Fast Ethernet subinterface number<br />
the number used to program the router for unequal cost path load balancing<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Which protocol allows a switch port to transition directly to the forwarding state after a failure is detected?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• STP</div><div style="font-family: "Trebuchet MS",sans-serif;">BGP<br />
RSTP<br />
HSRP<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. A network designer needs to determine if a proposed IP addressing scheme allows efficient route summarization and provides the appropriate amount of scalability to a design. What is useful for validating a proposed hierarchical IP addressing scheme?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
NBAR<br />
a pilot network<br />
a route summary<br />
• a network simulator</div><div style="font-family: "Trebuchet MS",sans-serif;">a physical topology map<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. A network designer creates a test plan that includes the specification shown. In which section of the test plan would this specification be found?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Test Description<br />
Test Procedures<br />
Design and Topology Diagram<br />
Actual Results and Conclusions<br />
• Anticipated Results and Success Criteria<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. While preparing a network test plan document, a network designer records all initial and modified device configurations. Which section of the document typically contains this information?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Appendix<br />
Test Procedures<br />
Test Description<br />
Actual Results and Conclusions<br />
Anticipated Results and Success Criteria<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Refer to the exhibit. The users on the 192.168.10.192 network are not allowed Internet access. The network design calls for an extended ACL to be developed and tested. Where should the ACL be placed for the least effect on other network traffic?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
inbound on Fa0/0 of R3<br />
outbound on Fa0/0 of R3<br />
inbound on Fa0/1 of R3<br />
• outbound on Fa0/1 of R3<br />
inbound on Fa0/1 of R2<br />
outbound on S0/0 of R2<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. Refer to the exhibit. Why are interfaces Fa0/11, Fa0/23, and Fa0/24 not shown in this switch output?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Interfaces Fa0/11, Fa0/23, and Fa0/24 are trunks.</div><div style="font-family: "Trebuchet MS",sans-serif;">Interfaces Fa0/11, Fa0/23, and Fa0/24 are shutdown.<br />
Interfaces Fa0/11, Fa0/23, and Fa0/24 are blocking.<br />
Interfaces Fa0/11, Fa0/23, and Fa0/24 failed diagnostics.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. What OSI model Layer 2 security measure can a network engineer implement when prototyping network security?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
a firewall at the network edge<br />
• port security at the access design layer<br />
port security at the distribution design layer<br />
IP access control lists at the access design layer<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Refer to the exhibit. During prototyping, Layer 2 functionality is being tested. Based on the output shown, which two pieces of information can be determined? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Switch1 is the root bridge.<br />
Interface Fa0/2 on Switch1 has no role in the operation of spanning tree.<br />
• Interface Fa0/2 on Switch1 is the alternate port used to reach the root bridge.<br />
• Based on the entries in the "Role" column, it can be concluded that RSTP has been implemented.<br />
Interface Fa0/1 on Switch1 is the forwarding port selected for the entire spanning-tree topology.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. What Rapid Spanning Tree Protocol (RSTP) state is given to the forwarding port elected for every switched Ethernet LAN segment?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
root<br />
backup<br />
alternate<br />
• Designated </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-46546649863884039612010-05-02T15:00:00.000-07:002010-05-02T15:00:15.336-07:00CCNA 4 Exploration v4.0 - Module 6<div style="font-family: "Trebuchet MS",sans-serif;"> <span style="font-size: large;"><span><span><b> </b></span></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><span><b>Chapt</b></span><span><b><span>er 6 - Exam Answers</span></b></span></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Which two statements about DSL are true? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
users are on a shared medium<br />
uses RF signal transmission<br />
• local loop can be up to 3.5 miles (5.5km)<br />
physical and data link layers are defined by DOCSIS<br />
• user connections are aggregated at a DSLAM located at the CO<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• channel widths<br />
access method<br />
maximum data rate<br />
• modulation techniques<br />
compression techniques<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
use higher RF frequencies<br />
• allocate an additional channel<br />
• subdivide the network to reduce users on each segment<br />
reduce the length of the local loop to 5.5 kilometers or less<br />
use filters and splitters at the customer site to separate voice from data traffic<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. A technician has been asked to configure a broadband connection for a teleworker. The technician has been instructed that all uploads and downloads for the connection must use existing phone lines. Which broadband technology should be used?</div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
cable<br />
• DSL<br />
ISDN<br />
POTS<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. After conducting research to learn about common remote connection options for teleworkers, a network administrator hasdecided to implement remote access over broadband to establish VPN connections over the public Internet. What is the resultof this solution?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
A reliable connection is established at greater speeds than what is offered from dialup over POTS. Security is increased, but username and password information are sent in plain text.<br />
• The connection has increased security and reliable connectivity. Users need a remote VPN router or VPN clientsoftware.<br />
Security and reliability are increased at a substantial loss in throughput, which is considered acceptable when supporting asingle user environment.<br />
Reliability and security are increased without the need for additional equipment, when compared to dialup connections usingPOTS.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. What are the three main functions of a secure VPN? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
accounting<br />
• authentication<br />
authorization<br />
data availability<br />
• data confidentiality<br />
• data integrity<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Which two methods could an administrator use to authenticate users on a remote access VPN? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• digital certificates<br />
ESP<br />
hashing algorithms<br />
• smart cards<br />
WPA<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Data confidentiality through a VPN is achieved through which two methods? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
digital certificates<br />
• encryption<br />
• encapsulation<br />
hashing<br />
passwords<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Data confidentiality through a VPN can be enhanced through the use of which three encryption protocols? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• AES<br />
• DES<br />
AH<br />
hash<br />
MPLS<br />
• RSA<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Which is an example of symmetric-key encryption?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Diffie-Hellman<br />
digital certificate<br />
• pre-shared key<br />
RSA signature<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Which statement describes cable?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Delivering services over a cable network requires downstream frequencies in the 50 to 860 MHz range, and upstreamfrequencies in the 5 to 42 MHz range.<br />
The cable subscriber must purchase a cable modem termination system (CMTS)<br />
Each cable subscriber has dedicated upstream and downstream bandwidth.<br />
Cable subscribers may expect up to 27 Mbps of bandwidth on the upload path.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. A company is using WiMAX to provide access for teleworkers. What home equipment must the company provide at theteleworker's site?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
a WiMAX tower<br />
a one-way multicast satellite<br />
• a WiMAX receiver<br />
an access point connected to the company WLAN<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Which two features can be associated with the Worldwide Interoperability for Microwave Access (WiMAX)telecommunication technology? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
supports municipal wireless networks utilizing mesh technologies<br />
• covers areas as large as 7,500 square kilometers<br />
supports point-to-point links, but not full mobile cellular-type access<br />
• connects directly to the Internet through high-bandwidth connections<br />
operates at lower speeds than Wi-Fi, but supports many more users<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. While monitoring traffic on a cable network, a technician notes that data is being transmitted at 38 MHz. Which statementdescribes the situation observed by the technician?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Data is being transmitted from the subscriber to the headend.<br />
Data is flowing downstream.<br />
Cable television transmissions are interfering with voice and data transmissions.<br />
The system is experiencing congestion in the lower frequency ranges.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. All users have a legitimate purpose and the necessary persissions to access the Corporate network. Based on the topology shown, which locations are able to establish VPN connectivity with the Corporate network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Locations C, D, and E can support VPN connectivity. Locations A and B require an additional PIX Firewall appliance installedon the edge of the network.<br />
Locations C and E can support VPN connectivity. Locations A, B, and D require an additional PIX Firewall appliance installed on the edge of the network.<br />
Locations A, B, D, and E can support VPN connectivity. Location C requires an additional router on the edge of the network.<br />
• All locations can support VPN connectivity.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. What two protocols provide data authentication and integrity for IPsec? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• AH<br />
L2TP<br />
• ESP<br />
GRE<br />
PPTP<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Which two protocols can be used to encapsulate traffic that is traversing a VPN tunnel? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ATM<br />
CHAP<br />
• IPsec<br />
IPX<br />
MPLS<br />
• PPTP<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. Refer to the exhibit. A teleworker is connected over the Internet to the HQ Office. What type of secure connection can be established between the teleworker and the HQ Office?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
a GRE tunnel<br />
a site-to-site VPN<br />
• a remote-access VPN<br />
the user must be at the office location to establish a secure connection<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Refer to the exhibit. A VPN tunnel has been established between the HQ Office and the Branch Office over the public Internet. Which three mechanisms are required by the devices on each end of the VPN tunnel to protect the data from being intercepted and modified? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The devices must use a dedicated Layer 2 connection.<br />
The devices must have the VPN client software installed.<br />
The two parties must inspect the traffic against the same ACLs.<br />
• The two parties must establish a secret key used by encryption and hash algorithms.<br />
• The two parties must agree on the encryption algorithm to be used over the VPN tunnel.<br />
• The devices must be authenticated before the communication path is considered secure. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-6424853472592528612010-04-30T16:28:00.000-07:002010-04-30T16:28:14.290-07:00CCNA 4 Exploration v4.0 - Chapter 5<div style="font-family: "Trebuchet MS",sans-serif;"> <span style="font-size: large;"><span> </span><span><b><span>Chapter 5 - Exam Answers</span></b></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. By default, how is IP traffic filtered in a Cisco router?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
blocked in and out of all interfaces<br />
blocked on all inbound interfaces, but permitted on all outbound interfaces<br />
• permitted in and out of all interfaces<br />
blocked on all outbound interfaces, but permitted on all inbound interfaces<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which three parameters can ACLs use to filter traffic? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
packet size<br />
• protocol suite<br />
• source address<br />
• destination address<br />
source router interface<br />
destination router interface<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. How do Cisco standard ACLs filter traffic?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
by destination UDP port<br />
by protocol type<br />
• by source IP address<br />
by source UDP port<br />
by destination IP address<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Which two statements are correct about extended ACLs? (Choose two)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Extended ACLs use a number range from 1-99.<br />
Extended ACLs end with an implicit permit statement.<br />
• Extended ACLs evaluate the source and destination addresses.<br />
• Port numbers can be used to add greater definition to an ACL.<br />
Multiple ACLs can be placed on the same interface as long as they are in the same direction.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Where should a standard access control list be placed?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
close to the source<br />
• close to the destination<br />
on an Ethernet port<br />
on a serial port<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Which three statements describe ACL processing of packets? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• An implicit deny any rejects any packet that does not match any ACL statement.<br />
• A packet can either be rejected or forwarded as directed by the statement that is matched.<br />
A packet that has been denied by one statement can be permitted by a subsequent statement.<br />
A packet that does not match the conditions of any ACL statements will be forwarded by default.<br />
• Each statement is checked only until a match is detected or until the end of the ACL statement list.<br />
Each packet is compared to the conditions of every statement in the ACL before a forwarding decision is made.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Which two statements are true regarding the significance of the access control list wildcard mask 0.0.0.7? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The first 29 bits of a given IP address will be ignored.<br />
• The last 3 bits of a given IP address will be ignored.<br />
The first 32 bits of a given IP address will be checked.<br />
• The first 29 bits of a given IP address will be checked.<br />
The last 3 bits of a given IP address will be checked.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Which two statements are true regarding the following extended ACL? (Choose two.)<br />
ccess-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 20<br />
access-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 21<br />
access-list 101 permit ip any any<br />
<br />
• FTP traffic originating from network 172.16.3.0/24 is denied.<br />
All traffic is implicitly denied.<br />
FTP traffic destined for the 172.16.3.0/24 network is denied.<br />
Telnet traffic originating on network 172.16.3.0/24 is denied.<br />
• Web traffic originating from 172.16.3.0 is permitted.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Interface s0/0/0 already has an IP ACL applied inbound. What happens when the network administrator attempts to apply a second inbound IP ACL?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The second ACL is applied to the interface, replacing the first.<br />
Both ACLs are applied to the interface.<br />
The network administrator receives an error.<br />
Only the first ACL remains applied to the interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. When creating an extended ACL to deny traffic from the 192.168.30.0 network destined for the Web server 209.165.201.30, where is the best location for applying the ACL?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ISP Fa0/0 outbound<br />
R2 S0/0/1 inbound<br />
• R3 Fa0/0 inbound<br />
R3 S0/0/1 outbound<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Which two statements are true regarding named ACLs? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Only named ACLs allow comments.<br />
• Names can be used to help identify the function of the ACL.<br />
Named ACLs offer more specific filtering options than numbered ACLs.<br />
• Certain complex ACLs, such as reflexive ACLs, must be defined with named ACLs.<br />
More than one named IP ACL can be configured in each direction on a router interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Which three items must be configured before a dynamic ACL can become active on a router? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• extended ACL<br />
reflexive ACL<br />
console logging<br />
• authentication<br />
• Telnet connectivity<br />
user account with a privilege level of 15<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It is allowed because of the implicit deny any.<br />
• It is dropped because it does not match any of the items in the ACL.<br />
It is allowed because line 10 of the ACL allows packets to 192.168.0.0/16.<br />
It is allowed because line 20 of the ACL allows packets to the host 192.168.10.13.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. A network administrator needs to allow traffic through the firewall router for sessions that originate from within the company network, but the administrator must block traffic for sessions that originate outside the network of the company.What type of ACL is most appropriate?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
dynamic<br />
port-based<br />
• reflexive<br />
time-based<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. How will Router1 treat traffic matching the time-range requirement of EVERYOTHERDAY?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
TCP traffic entering fa0/0 from 172.16.1.254/24 destined to the 10.1.1.0/24 network is permitted.<br />
TCP traffic entering fa0/0 from 10.1.1.254/24 destined to the 172.16.1.0/24 network is permitted.<br />
Telnet traffic entering fa0/0 from 172.16.1.254/24 destined to the 10.1.1.0/24 network is permitted.<br />
• Telnet traffic entering fa0/0 from 10.1.1.254/24 destined to the 172.16.1.0/24 network is permitted.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. The following commands were entered on a router:<br />
Router(config)# access-list 2 deny 172.16.5.24<br />
Router(config)# access-list 2 permit any<br />
The ACL is correctly applied to an interface. What can be concluded about this set of commands?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The wildcard mask 0.0.0.0 is assumed.<br />
The access list statements are misconfigured.<br />
All nodes on the 172.16.0.0 network will be denied access to other networks.<br />
No traffic will be allowed to access any nodes or services on the 172.16.0.0 network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Refer to the exhibit. The administrator wishes to block web traffic from 192.168.1.50 from reaching the default port of the web service on 192.168.3.30. To do this, the access control list name is applied inbound on the router R1 LAN interface. After testing the list, the administrator has noted that the web traffic remains successful. Why is web traffic reaching the destination?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Web traffic does not use port 80 by default.<br />
The access list is applied in the wrong direction.<br />
The access list needs to be placed closer to the destination, on R3.<br />
• The range of source addresses specified in line 10 does not include host 192.168.1.50.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. Refer to the exhibit. What will be the effect of the configuration that is shown?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Users attempting to access hosts in the 192.168.30.0/24 network will be required to telnet to R3.<br />
Hosts connecting to resources in the 191.68.30.0/24 network have an idle timeout of 15 minutes.<br />
Anyone attempting to telnet into R3 will have an absolute time limit of five minutes.<br />
Telnet access to R3 will only be permitted on Serial 0/0/1.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Which statement about standard ACLs is true</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Standard ACLS must be numbered and cannot be named.<br />
• They should be placed as close to the destination as possible.<br />
They can filter based on source and destination address as well as on source and destination port.<br />
When applied to an outbound interface, incoming packets are processed before they are routed to the outbound interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Which benefit does an extended ACL offer over a standard ACL?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Extended ACLs can be named, but standard ACLs cannot.<br />
Unlike standard ACLs, extended ACLS can be applied in the inbound or outbound direction.<br />
Based on payload content, an extended ACL can filter packets, such as information in an e-mail or instant message.<br />
• In addition to the source address, an extended ACL can also filter on destination address, destination port, and source port.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. Which feature will require the use of a named ACL rather than a numbered ACL?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
the ability to filter traffic based on a specific protocol<br />
the ability to filter traffic based on an entire protocol suite and destination<br />
the ability to specify source and destination addresses to use when identifying traffic<br />
• the ability to edit the ACL and add additional statements in the middle of the list without removing and re-creating the list<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">22. A technician is creating an ACL and needs a way to indicate only the subnet 172.16.16.0/21. Which combination of network address and wildcard mask will accomplish the desired task?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
172.16.0.0 0.0.255.255<br />
127.16.16.0 0.0.0.255<br />
• 172.16.16.0 0.0.7.255<br />
172.16.16.0 0.0.15.255<br />
172.16.16.0 0.0.255.255<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">23. Which two statements accurately describe the characteristics of wildcard masks in an ACL? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Wildcard masks are the inverse of the subnet mask.<br />
The word "any" indicates that all corresponding bits must be matched.<br />
• The word "host" corresponds to a wildcard mask of 0.0.0.0 in an ACL statement.<br />
• A wildcard mask of 0.0.255.255 can be used to create a match for an entire Class B network.<br />
A wildcard mask bit of 1 indicates that the corresponding bit in the address must be matched.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">24. Refer to the exhibit. Which statement is true about ACL 110 if ACL 110 is applied in the inbound direction on S0/0/0 of R1?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It will deny TCP traffic to the Internet if the traffic is sourced from the 172.22.10.0/24 network.<br />
It will not allow TCP traffic coming from the Internet to enter the network 172.22.10.0/24.<br />
It will allow any TCP traffic from the Internet to enter the network 172.22.10.0/24.<br />
• It will permit any TCP traffic that originated from network 172.22.10.0/24 to return inbound on the S0/0/0 interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">25. Refer to the exhibit. ACL 120 is configured inbound on the serial0/0/0 interface on router R1, but the hosts on network 172.11.10.0/24 are able to telnet to network 10.10.0.0/16. On the basis of the provided configuration, what should be done to remedy the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Apply the ACL outbound on the serial0/0/0 interface on router R1.<br />
Apply the ACL outbound on the FastEthernet0/0 interface on router R1.<br />
Include the established keyword at the end of the first line in the ACL.<br />
Include a statement in the ACL to deny the UDP traffic that originates from 172.11.10.0/24 network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">26. Refer to the exhibit. The network administrator applied an ACL outbound on S0/0/0 on router R1. Immediately after the administrator did so, the users on network 172.22.30.0/24 started complaining that they have intermittent access to the resources available on the server on the 10.10.0.0/16 network. On the basis of the configuration that is provided, what is the possible reason for the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The ACL allows only the mail traffic to the server; the rest of the traffic is blocked.<br />
• The ACL permits the IP packets for users on network 172.22.30.0/24 only during a specific time range.<br />
The ACL permits TCP packets only if a connection is established from the server to the network 172.22.0.0/16.<br />
The ACL allows only TCP traffic from users on network 172.22.40.0/24 to access the server; TCP traffic from any other sources is blocked. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-67113091133689236952010-04-29T09:28:00.000-07:002010-04-29T09:28:01.054-07:00CCNA 4 Exploration v4.0 - Chapter 4<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"> </span><span style="font-size: large;"><b><span style="font-size: large;">Chapter 4 - Exam Answers</span></b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"> </div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">1. Which two statements are true regarding network security? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
Securing a network against internal threats is a lower priority because company employees represent a low security risk.<br />
**Both experienced hackers who are capable of writing their own exploit code and inexperienced individuals who download exploits from the Internet pose a serious threat to network security.<br />
Assuming a company locates its web server outside the firewall and has adequate backups of the web server, no further security measures are needed to protect the web server because no harm can come from it being hacked.<br />
Established network operating systems like UNIX and network protocols like TCP/IP can be used with their default settings because they have no inherent security weaknesses.<br />
** Protecting network devices from physical damage caused by water or electricity is a necessary part of the security policy.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">2. Which two statements are true about network attacks? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
Strong network passwords mitigate most DoS attacks.<br />
Worms require human interaction to spread, viruses do not.<br />
Reconnaissance attacks are always electronic in nature, such as ping sweeps or port scans.<br />
** A bruteforce attack searches to try every possible password from a combination of characters.<br />
** Devices in the DMZ should not be fully trusted by internal devices, and communication between the DMZ and internal devices should be authenticated to prevent attacks such as port redirection.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">3. Users are unable to access a company server. The system logs show that the server is operating slowly because it is receiving a high level of fake requests for service. Which type of attack is occurring?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
reconnaissance<br />
access<br />
** DoS<br />
worm<br />
virus<br />
Trojan horse<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">4. An IT director has begun a campaign to remind users to avoid opening email messages from suspicious sources. Which type of attack is the IT director trying to protect users from?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
DoS<br />
DDoS<br />
** virus<br />
access<br />
reconnaissance<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">5. Which two statements regarding preventing network attacks are true? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
The default security settings for modern server and PC operating systems can be trusted to have secure default security settings.<br />
Intrusion prevention systems can log suspicious network activity, but there is no way to counter an attack in progress without user intervention.<br />
** Physical security threat mitigation consists of controlling access to device console ports, labeling critical cable runs, installing UPS systems, and providing climate control.<br />
Phishing attacks are best prevented by firewall devices.<br />
** Changing default usernames and passwords and disabling or uninstalling unnecessary services are aspects of device hardening.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">6. Intrusion detection occurs at which stage of the Security Wheel?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
securing<br />
** monitoring<br />
testing<br />
improvement<br />
reconnaissance<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">7. Which two objectives must a security policy accomplish? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
provide a checklist for the installation of secure servers<br />
describe how the firewall must be configured<br />
** document the resources to be protected<br />
** identify the security objectives of the organization<br />
identify the specific tasks involved in hardening a router<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">8. What are three characteristics of a good security policy? (Choose three.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
** It defines acceptable and unacceptable use of network resources.<br />
** It communicates consensus and defines roles.<br />
It is developed by end users.<br />
It is developed after all security devices have been fully tested.<br />
** It defines how to handle security incidents.<br />
It should be encrypted as it contains backups of all important passwords and keys.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">9. Which two statements define the security risk when DNS services are enabled on the network? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
** By default, name queries are sent to the broadcast address 255.255.255.255.<br />
DNS name queries require the ip directedbroadcast command to be enabled on the Ethernet interfaces of all routers.<br />
Using the global configuration command ip nameserver on one router enables the DNS services on all routers in the network.<br />
** The basic DNS protocol does not provide authentication or integrity assurance.<br />
The router configuration does not provide an option to set up main and backup DNS servers.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">10. What are two benefits of using Cisco AutoSecure? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
It gives the administrator detailed control over which services are enabled or disabled.<br />
** It offers the ability to instantly disable nonessential system processes and services.<br />
It automatically configures the router to work with SDM.<br />
It ensures the greatest compatibility with other devices in your network.<br />
** It allows the administrator to configure security policies without having to understand all of the Cisco IOS software features.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">11. Refer to the exhibit. A network administrator is trying to configure a router to use SDM, but it is not functioning correctly. What could be the problem?<br />
<br />
<br />
** The privilege level of the user is not configured correctly.<br />
The authentication method is not configured correctly.<br />
The HTTP server is not configured correctly.<br />
The HTTP timeout policy is not configured correctly.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">12. The Cisco IOS image naming convention allows identification of different versions and capabilities of the IOS. What information can be gained from the filename c2600dmz.1214? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
The "mz" in the filename represents the special capabilities and features of the IOS.<br />
The file is uncompressed and requires 2.6 MB of RAM to run.<br />
** The software is version 12.1, 4th revision.<br />
The file is downloadable and 121.4MB in size.<br />
** The IOS is for the Cisco 2600 series hardware platform.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">13. Refer to the exhibit. The network administrator is trying to back up the Cisco IOS router software and receives the output shown. What are two possible reasons for this output? (Choose two.)<br />
<br />
<br />
The Cisco IOS file has an invalid checksum.<br />
The TFTP client on the router is corrupt.<br />
** The router cannot connect to the TFTP server.<br />
** The TFTP server software has not been started.<br />
There is not enough room on the TFTP server for the software.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">14. Which two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
Verify the name of the TFTP server using the show hosts command.<br />
Verify that the TFTP server is running using the tftpdnld command.<br />
Verify that the checksum for the image is valid using the show version command.<br />
** Verify connectivity between the router and TFTP server using the ping command.<br />
** Verify that there is enough flash memory for the new Cisco IOS image using the show flash command.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">15. The password recovery process begins in which operating mode and using what type of connection? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
** ROM monitor<br />
boot ROM<br />
Cisco IOS<br />
** direct connection through the console port<br />
network connection through the Ethernet port<br />
network connection through the serial port<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">16. Refer to the exhibit. Security Device Manager (SDM) is installed on router R1. What is the result of opening a web browser on PC1 and entering the URL https://192.168.10.1?<br />
<br />
<br />
The password is sent in plain text.<br />
A Telnet session is established with R1.<br />
** The SDM page of R1 appears with a dialog box that requests a username and password.<br />
The R1 home page is displayed and allows the user to download Cisco IOS images and configuration files.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">17. Which statement is true about Cisco Security Device Manager (SDM)?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
SDM can run only on Cisco 7000 series routers.<br />
**SDM can be run from router memory or from a PC.<br />
SDM should be used for complex router configurations.<br />
SDM is supported by every version of the Cisco IOS software.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">18. Which step is required to recover a lost enable password for a router?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
** Set the configuration register to bypass the startup configuration.<br />
Copy the running configuration to the startup configuration.<br />
Reload the IOS from a TFTP server from ROMMON.<br />
Reconfigure the router using setup mode.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">19. What is the best defense for protecting a network from phishing exploits?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
Schedule antivirus scans.<br />
Schedule antispyware scans .<br />
** Schedule training for all users.<br />
Schedule operating systems updates.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">20. Refer to the exhibit. Security Device Manager (SDM) has been used to configure a required level of security on the router. What would be accomplished when the SDM applies the next step on the security problems that are identified on the router?<br />
<br />
<br />
SDM will automatically invoke the AutoSecure command.<br />
SDM will generate a report that will outline the proper configuration actions to alleviate the security issues.<br />
SDM will create a configuration file that can be copy and pasted into the router to reconfigure the services.<br />
** SDM will reconfigure the services that are marked in the exhibit as “fix it” to apply the suggested security changes.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">21. Refer to the exhibit. What is the purpose of the "ip ospf messagedigestkey 1 md5 cisco" statement in the configuration?<br />
<br />
<br />
** to specify a key that is used to authenticate routing updates<br />
to save bandwidth by compressing the traffic<br />
to enable SSH encryption of traffic<br />
to create an IPsec tunnel<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">22. Refer to the exhibit. What is accomplished when both commands are configured on the router?<br />
<br />
<br />
The commands filter UDP and TCP traffic coming to the router.<br />
The commands disable any TCP or UDP request sent by the routing protocols.<br />
** The commands disable the services such as echo, discard, and chargen on the router to prevent security vulnerabilities.<br />
The commands disable the BOOTP and TFTP server services to prevent security vulnerabilities. </span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-34201091412695198972010-04-28T16:00:00.000-07:002010-04-28T16:05:59.692-07:00CCNA 1 Discovery Version 4.0 Module 3<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b> <span style="font-size: large;">Module </span></b><span style="font-size: large;"><b>3 - Exam Answers</b></span></span><br />
<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">1. Which term is used to describe the process of placing one message format into another format so that the message can be delivered across the appropriate medium?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
flow control<br />
**encapsulation<br />
encoding<br />
multicasting<br />
access method<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">2. Refer to the graphic. Five PCs are connected through a hub. If host H1 wants to reply to a message from host H2, which statement is true?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
**H1 sends a unicast message to H2, but the hub forwards it to all devices.<br />
H1 sends a unicast message to H2, and the hub forwards it directly to H2.<br />
H1 sends a broadcast message to H2, and the hub forwards it to all devices.<br />
H1 sends a multicast message to H2, and the hub forwards it directly to H2.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">3. Which two statements concerning networking standards are true? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
adds complexity to networks<br />
encourages vendors to create proprietary protocols<br />
**provides consistent interconnections across networks<br />
ensures that communications work best in a single-vendor environment<br />
**simplifies new product development<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">4. What does the 100 mean when referencing the 100BASE-T Ethernet standard?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
type of cable used<br />
type of data transmission<br />
**speed of transmission<br />
type of connector required<br />
maximum length of cable allowed<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">5. Which address does an NIC use when deciding whether to accept a frame?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
source IP address<br />
source MAC address<br />
destination IP address<br />
**destination MAC address<br />
source Ethernet address<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">6. Which type of address is used in an Ethernet frame header?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
logical addresses only<br />
IP addresses only<br />
**MAC addresses only<br />
broadcast addresses only<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">7. What is the function of the FCS field in an Ethernet frame?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
**detects transmission errors<br />
provides timing for transmission<br />
contains the start of frame delimiter<br />
indicates which protocol will receive the frame<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">8. What is the purpose of logical addresses in an IP network?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
They identify a specific NIC on a host device.<br />
They are used to determine which host device accepts the frame.<br />
They provide vendor-specific information about the host.<br />
**They are used to determine the network that the host is located on.<br />
They are used by switches to make forwarding decisions.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">9. Which device accepts a message on one port and always forwards the message to all other ports?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
modem<br />
switch<br />
router<br />
**hub<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">10. Which two networking devices are used to connect hosts to the access layer? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
router<br />
**hub<br />
**switch<br />
server<br />
computer<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">11. Host A needs to learn the MAC address of Host B, which is on the same LAN segment. A message has been sent to all the hosts on the segment asking for the MAC address of Host B. Host B responds with its MAC address and all other hosts disregard the request. What protocol was used in this scenario?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
**ARP<br />
DHCP<br />
DNS<br />
WINS<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">12. A switch receives a frame with a destination MAC address that is currently not in the MAC table. What action does the switch perform?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
It drops the frame.<br />
It sends out an ARP request looking for the MAC address.<br />
**It floods the frame out of all active ports, except the origination port.<br />
It returns the frame to the sender.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">13. What is a benefit of having a router within the distribution layer?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
prevents collisions on a local network<br />
**keeps broadcasts contained within a local network<br />
controls which hosts have access to the network<br />
controls host-to-host traffic within a single local network<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">14. Refer to the graphic. What does the router do after it determines that a data packet from Network 1 should be forwarded to Network 2?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
It sends the data packet as it was received.<br />
**It reassembles the frame with different MAC addresses than the original frame.<br />
It reassembles the data packet with different IP addresses than the original data packet.<br />
It reassembles both the packet and the frame with different destination IP and MAC addresses.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">15. Which table does a router use to make decisions on where a data packet is to be sent?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
ARP table<br />
**routing table<br />
network table<br />
forwarding table<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">16. If the default gateway is configured incorrectly on the host, what is the impact on communications?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
The host is unable to communicate on the local network.<br />
**The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.<br />
The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.<br />
There is no impact on communications.<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">17. What device is typically used as the default gateway for a computer?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
a server hosted by the ISP<br />
**the router interface closest to the computer<br />
a server managed by a central IT department<br />
the switch interface that connects to the computer<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">18. If a router receives a packet that it does not know how to forward, what type of route must be configured on the router to prevent the router from dropping it?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
dynamic route<br />
**default route<br />
destination route<br />
default destination<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">19. Which two items are included in a network logical map? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
**naming scheme<br />
**IP addressing scheme<br />
length of cable runs<br />
physical location of networking devices<br />
specific layout of interconnections between networking devices and hosts<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">20. An integrated router can normally perform the functions of which two other network devices? (Choose two.)</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
NIC<br />
**switch<br />
e-mail server<br />
application server<br />
**wireless access point<br />
<br />
</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">21. What is a reason for disabling simple file sharing?</span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><br />
It enables the user to map a remote resource with a local drive.<br />
It enables the user to share all files with all users and groups.<br />
It enables the user to share printers.<br />
**It enables the user to set more specific security access levels.</span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-763867317203615172010-04-27T15:17:00.000-07:002010-04-27T15:17:57.477-07:00CCNA 1 Discovery Version 4.0 Module 2<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b> Module </b><span><b>2 - Exam Answers</b></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><b> </b></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><span><b> </b></span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"> </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">1. An operating system is severely damaged. All data on the partition needs to be deleted, and all application software must be reinstalled. Which installation method should be used to correct the problem? </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
**<span style="margin: 0px; padding: 0px;">clean install</span> <br />
upgrade <br />
multi-boot <br />
virtualization <br />
<a href="" name="more"></a><br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">2. Which two statements should be included in a pre-installation checklist when upgrading an operating system? (Choose two.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
Verify that the hardware resources have multiple partitions. <br />
**<span style="margin: 0px; padding: 0px;">Verify that the hardware resources meet or exceed the published minimum requirements. <br />
**Complete a full backup of all important files and data.</span> <br />
Overwrite any data currently contained on the drive to remove all contents. <br />
Verify that the hardware resources are certified to work with the existing operating system prior to upgrading. <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">3. Which three pieces of information must be specified on a computer to allow that computer to send and receive information across networks? (Choose three.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
closest server <br />
operating system <br />
**<span style="margin: 0px; padding: 0px;">IP address <br />
**subnet mask <br />
**default gateway</span> <br />
network card driver <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">4. Which two items must be unique to each computer and cannot be duplicated on a network? (Choose two.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
partition <br />
file system <br />
<span style="margin: 0px; padding: 0px;">**computer name <br />
**IP address</span> <br />
operating system <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">5. Which method of interacting with an operating system involves typing commands at a command prompt? </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**CLI</span> <br />
GUI <br />
redirector <br />
kernel translator <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">6. What are three characteristics of an operating system that is released under the GPL (GNU Public License)? (Choose three.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**full access to source code <br />
**software often available free</span> <br />
structured development cycle <br />
can be expensive to purchase <br />
limits what end-user can do with code <br />
<span style="margin: 0px; padding: 0px;">**support normally user-based and often free</span> <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">7. What is the purpose of a default gateway? </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
physically connects a computer to a network <br />
provides a permanent address to a computer <br />
identifies the network to which a computer is connected <br />
identifies the logical address of a networked computer and uniquely identifies it to the rest of the network <br />
<span style="margin: 0px; padding: 0px;">**identifies the device that allows local network computers to communicate with devices on other networks</span> <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">8. Which two statements are true about drive partitions? (Choose two.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**Partitions are necessary in multi-boot installations. <br />
**A hard drive can be divided into an operating system partition and a data partition.</span> <br />
User data is never overwritten when a drive is partitioned. <br />
A disk partition is a defined section of an operating system. <br />
Each partition requires a different file system type. <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">9. What occurs when computers are configured to receive their network configurations dynamically? </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
Each computer receives a permanent IP address. <br />
A network administrator enters information on each computer. <br />
**<span style="margin: 0px; padding: 0px;">Each computer requests configuration information from a server.</span> <br />
An NIC automatically provides configuration information to the computer and stores that configuration information. <br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">10. What are two ways that a user can interact with an operating system shell? (Choose two.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
**<span style="margin: 0px; padding: 0px;">CLI</span> <br />
OS <br />
<span style="margin: 0px; padding: 0px;">**GUI</span> <br />
NIC <br />
kernel <br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;">11. Which three resource specifications are given by the manufacturer to ensure that an operating system performs as designed? (Choose three.) </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"><br />
<span style="margin: 0px; padding: 0px;">**required hard disk space</span> <br />
type of accelerated graphics card <br />
**<span style="margin: 0px; padding: 0px;">recommended amount of RAM</span> <br />
printer requirements <br />
<span style="margin: 0px; padding: 0px;">**processor type and speed</span> </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span class="Apple-style-span" style="color: black; font-family: "Trebuchet MS",sans-serif; line-height: 16px;"> type of keyboard</span></span><span style="font-size: large;"><span><b> </b></span></span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-18958265822047239272010-04-26T15:45:00.000-07:002010-04-26T15:45:38.169-07:00CCNA 1 Discovery Version 4.0 Module 1<div style="font-family: "Trebuchet MS",sans-serif;"><b> Module </b><span style="font-size: large;"><b>1 - Exam Answers</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
1. Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
RAM<br />
**CPU<br />
video card<br />
sound card<br />
operating system<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>2. What are two advantages of purchasing a preassembled computer? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**usually a lower cost<br />
exact components may be specified<br />
extended waiting period for assembly<br />
**adequate for performing most general applications<br />
suited for customers with special needs<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>3. A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**RAM<br />
NIC<br />
video card<br />
sound card<br />
storage device<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>4. Which adapter card enables a computer system to exchange information with other systems on a local network?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
modem card<br />
controller card<br />
video card<br />
sound card<br />
**network interface card<br />
<br />
5. What is the main storage drive used by servers, desktops, and laptops?<br />
tape drive<br />
**hard drive<br />
optical drive (DVD)<br />
floppy disk drive<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>6. Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
CPU<br />
**surge suppressor<br />
motherboard<br />
hard drive<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>7. What are two examples of output peripheral devices? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**printer<br />
**speakers<br />
flash drive<br />
external DVD<br />
external modem</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>8. What two functions does a UPS provide that a surge protector does not ? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
protects the computer from voltage surges<br />
**provides backup power from an internal battery<br />
protects the computer from sudden voltage spikes<br />
gives the user time to phone the electrical company<br />
**gives the user time to safely shut down the computer if the power fails<br />
provides backup power through a generator provided by the wall outlet<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>9. What is a word processor?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
It is a physical computer component.<br />
**It is a program designed to perform a specific function.<br />
It is a program that controls the computer resources.<br />
It is a functional part of an operating system.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>10. What is the purpose of the ASCII code?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
translates bits into bytes<br />
interprets graphics digitally<br />
translates digital computer language into binary language<br />
**represents letters, characters, and numbers with bits<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>11. Why do servers often contain duplicate or redundant parts?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
Servers require more power and thus require more components.<br />
**Servers should be accessible at all times.<br />
Servers can be designed as standalone towers or rack mounted.<br />
Servers are required by networking standards to have duplicate parts.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>12. What are two benefits of hooking up a laptop to a docking station? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
Mobility is increased.<br />
**An external monitor can be used.<br />
**Alternate connectivity options may be available.<br />
The keyboard can be changed to a QWERTY-style keyboard.<br />
More wireless security options are available.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>13. Applications can be grouped into general use software or industry specific software. What are two examples of industry specific software? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**CAD<br />
presentation<br />
spreadsheet<br />
word processing<br />
**medical practice management<br />
contacts/scheduling management<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>14. Which three terms describe different types of computers? (Choose three.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
operating system<br />
network<br />
**laptop<br />
**desktop<br />
Windows<br />
**mainframe<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>15. How is a server different from a workstation computer?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
The server works as a standalone computer.<br />
**The server provides services to clients.<br />
The workstation has fewer applications installed.<br />
The workstation has more users who attach to it.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>16. How many values are possible using a single binary digit?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
1<br />
**2<br />
4<br />
8<br />
9<br />
16<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>17. What measurement is commonly associated with computer processing speed?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
bits<br />
pixels<br />
**hertz<br />
bytes<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>18. What can be used to prevent electrostatic discharge (ESD)?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
dry and non humid conditions<br />
carpeted floor<br />
**grounding strap<br />
uncluttered work space<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>19. If a peripheral device is not functioning, what are three things you should do to solve the problem? (Choose three.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**Use the testing functionality on the peripheral itself, if available.<br />
**Verify that all cables are connected properly.<br />
Disconnect all cables connected to the computer except those connected to the peripheral.<br />
**Ensure that the peripheral is powered on.<br />
Disconnect the peripheral and verify that the computer is operating normally.<br />
Reload the computer operating system.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>20. Which two steps should be performed when installing a peripheral device? (Choose two.)</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
**Download and install the most current driver.<br />
Connect the peripheral using any cable and any available port on the computer.<br />
**Connect the peripheral using an appropriate cable or wireless connection.<br />
Test the peripheral on another machine before installing it on the one where it will be used.<br />
Check the computer documentation to see if the peripheral vendor is compatible with the PC vendor.<br />
<br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span>21. In newer operating systems, how are system resources assigned by default when components are installed?</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
manually assigned by the operating system<br />
manually assigned by the administrator<br />
statically assigned by the component to a preset resource<br />
**dynamically assigned between the component and the operating system </span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;"><span><br />
</span></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b><br />
</b></span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-52452822323035118282010-04-26T15:37:00.000-07:002010-04-26T15:37:14.352-07:00CCNA Discovery answersHello all,<br />
<br />
Besides the questions and answers for CCNA Exploration,i will update the site with all the questions for the Discovery Module (all questions and all correct answers). For those who have started on this route will be very helpful. <br />
<br />
I hope that will help you and expect your views.<br />
<br />
Good dayPRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-67466711591454487302010-04-26T15:22:00.000-07:002010-04-26T15:22:58.112-07:00Cisco Industry Certifications Exams<div style="font-family: "Trebuchet MS",sans-serif;">Networking Academy courses support the following Cisco certifications:<br />
<b><br />
Certification :</b><br />
Cisco Certified Entry Network Technician (CCENT) <br />
<br />
<b>Recommended Academy Curriculum </b>CCNA Discovery :<br />
# Networking for Home and Small Businesses<br />
# Working at a Small-to-Medium Business or ISP<br />
ICND1 (640-822)<br />
Cisco Certified Network Associate( CCNA) CCNA Discovery:<br />
# Networking for Home and Small Businesses<br />
# Working at a Small-to-Medium Business or ISP<br />
# Introducing Routing and Switching<br />
# Designing and Supporting Computer Networks<br />
or<br />
CCNA Exploration:<br />
# Networking Fundamentals<br />
# Routing Protocols and Concepts<br />
# LAN Switching and Wireless<br />
# Accessing the WAN<br />
CCNA (640-802)<br />
or<br />
ICND1 (640-822) and<br />
ICND2 (640-816)<br />
Cisco Certified Network Professional(CCNP) CCNP:<br />
# Building Scalable Networks<br />
# Implementing Secure Converged Wide-Area Networks<br />
# Building Multilayer Switched Networks<br />
# Optimizing Converged Networks<br />
<br />
<b>Certification Exam(s)</b><br />
The following three exams:<br />
Composite(642-892)<br />
ISCW (642-825)<br />
ONT (642-845)<br />
or<br />
The following four exams:<br />
BSCI (642-901)<br />
BCMSN (642-812)<br />
ISCW (642-825)<br />
ONT (642-845)<br />
</div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-79330728154020282552010-04-26T05:45:00.000-07:002010-04-26T05:45:33.716-07:00CCNA 4 Exploration v4.0 - Chapter 2<div style="font-family: "Trebuchet MS",sans-serif;"> <span style="font-size: large;"><b>Chapter 2 - Correct Answers 100%</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">--> Customers can define their virtual circuit needs in far greater combinations, with increments as small as 64 kbps.<br />
Customers pay for an end-to-end connection that includes the local loop and the network link.</div><div style="font-family: "Trebuchet MS",sans-serif;">--> Customers only pay for the local loop and the bandwidth they purchase from the network provider.<br />
Connecting new sites requires new lower cost circuit installations when compared to ISDN dialup costs or adding additional<br />
hardware for leased service.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. What two methods does Frame Relay technology use to process frames that contain errors? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Frame Relay services depend on the upper layer protocols to handle error recovery.<br />
It requires the receiving device to request that the sender retransmit erroneous frames.<br />
FECN, BECN, and DE bits are set in the frames to minimize errors.<br />
• The receiving device drops any frames that contain errors without notifying the sender.<br />
The frame relay switch notifies the sender that errors were detected.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. What best describes the use of a data-link connection identifier (DLCI)?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
local address identifying a destination router across a Frame Relay network<br />
• locally significant address used to identify a virtual circuit<br />
logical address identifying the interface between a router and a Frame Relay switch<br />
logical address used to identify the DCE<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. What is created between two DTEs in a Frame Relay network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ISDN circuit<br />
limited access circuit<br />
switched parallel circuit<br />
• virtual circuit<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Which two items allow the router to map data link layer addresses to network layer addresses in a Frame Relay network? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ARP<br />
RARP<br />
Proxy ARP<br />
• Inverse ARP<br />
• LMI status messages<br />
ICMP<br />
<br />
6. Refer to the exhibit. A ping is sent to address 192.168.50.10 from the Peanut router. Which DLCI will be used to send the ping?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• 110<br />
115<br />
220<br />
225<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Refer to the exhibit. Which two outcomes occur from the configuration shown? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The broadcasts will be forwarded to 10.1.1.1.<br />
• The router will use DLCI 22 to forward data to 10.1.1.1.<br />
DLCI 22 will replace the MAC address in the ARP table for entry 10.1.1.1<br />
• Frames arriving on interface serial 0/0/0 of RT_1 will have a data link layer address of 22.<br />
Inverse-ARP will now add an entry for 10.1.1.1 into the Frame Relay map table using DLCI 22.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Refer to the exhibit. What effect does the point-to-point configuration on subinterface S0/0.110 have on the operation of the router?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It helps to conserve IP addresses.<br />
It establishes multiple PVC connections to multiple physical interfaces.<br />
• It eliminates split horizon issues without increasing the likelihood of routing loops.<br />
It requires the configuration of the encapsulation command on the subinterface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Which three actions does a Frame Relay switch perform when it detects an excessive build-up of frames in its queue? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
puts a hold on accepting frames in excess of the CIR<br />
• drops frames from the queue that have the DE bit set<br />
reduces the number of frames it sends over the link<br />
re-negotiates flow control with the connected device<br />
• sets the FECN bit on all frames it receives on the congested link<br />
• sets the BECN bit on all frames it places on the congested link<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. Which two statements are true given the output shown? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The IP address of the local Frame Relay interface is 172.16.1.4.<br />
• The local DLCI number is 401.<br />
• Inverse ARP is being used on this connection.<br />
This interface is in the active state and in the process of negotiating configuration parameters.<br />
Multicast is not enabled on this connection.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Refer to the exhibit. When troubleshooting a Frame Relay connection, an administrator entered the show interfaces s0/0 command and received the output shown in the exhibit. What are two probable reasons for this problem? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The cable between the CSU/DSU and the router is disconnected.<br />
The serial 0/0 interface is shutdown.<br />
• The router is not configured for the same Frame Relay PVC as the switch.<br />
• The LMI type on the Frame Relay switch is NOT ANSI.<br />
The address of the Frame Relay switch is not in the routing table.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Refer to the exhibit. What can be determined about the Frame Relay switch from the output shown?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It is currently not transmitting data.<br />
It is in the process of establishing the PVC.<br />
It has put a hold on processing frames in excess of the CIR.<br />
• It is experiencing congestion.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Refer to the exhibit. Router R2 is part of a Frame Relay network that uses OSPF for IP routing. After the commands that are shown are entered, R2 will not exchange OSPF information correctly. What is the likely cause?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The frame-relay map command requires the broadcast keyword.<br />
The DLCIs on each end of the PVCs are not identical.<br />
The R2 S0/0/0 interface has not been brought online.<br />
The LMI or Inverse ARP or both are not working.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Which statement about Frame Relay subinterfaces is correct?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Multipoint interfaces will automatically forward routing broadcasts but will consume more IP addresses than point-to-point subinterfaces will consume.<br />
• Point-to-point subinterfaces act like leased lines and eliminate split-horizon routing issues.<br />
Interfaces with multiple PVCs require a separate subinterface for each PVC.<br />
Multipoint configurations cannot use subinterfaces.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. You are a network administrator who has been tasked with completing the Frame Relay topology thatinterconnects two remote sites. Router HQ belongs to both the 172.16.1.0/24 and 172.16.2.0/24 subnets with IP addresses of 172.16.1.3 and 172.16.2.3 respectively. Traffic between R1 and R2 must travel through HQ first. How should the serial interface on HQ be configured to complete the topology?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
one multipoint subinterface<br />
• two point-to-point subinterfaces<br />
with the physical interface configured with two ip addresses<br />
one IP address on a point-to-point subinterface and one IP address on the physical interface</div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"> 16. What consideration must be taken into account if RIP is used on Frame Relay multiaccess networks?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• To forward routing updates, address-to-DLCI mapping must be done via the use of the frame-relay map command<br />
coupled with the broadcast keyword.<br />
Inverse ARP must be enabled to turn routing update broadcasts into unicast traffic that can be propagated to other Frame Relay<br />
nodes.<br />
Because broadcast traffic is not supported, RIPv1 cannot be implemented on Frame Relay networks.<br />
To forward broadcast routing updates, dynamic mapping must be enabled.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Refer to the exhibit. Which statement explains why the Frame Relay connection between R1 and R2 is failing?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Split horizon must be disabled.<br />
The LMI type must be specified.<br />
Logical subinterfaces must be used instead.<br />
• The frame-relay map commands are using incorrect DLCIs.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. Refer to the exhibit. Router R1 has been configured for Frame Relay connectivity to routers R2 and R3. Which set of configuration options for routers R2 and R3 would provide each router connectivity to R1?<br />
<br />
R2(config)# interface serial0/0/1<br />
R2(config-if)# frame-relay map ip 10.1.1.1 102<br />
R3(config)# interface serial0/0/1<br />
R3(config-if)# frame-relay map ip 10.1.2.1 103<br />
<br />
R2(config)# interface serial0/0/1<br />
R2(config-if)# frame-relay map ip 10.1.1.1 102<br />
R2(config-if)# frame-relay map ip 10.1.2.3 301<br />
<br />
R3(config)# interface serial0/0/1<br />
R3(config-if)# frame-relay map ip 10.1.2.1 103<br />
R3(config-if)# frame-relay map ip 10.1.1.2 201<br />
<br />
R2(config)# interface serial0/0/1.201 point-to-point<br />
R2(config-if)# no frame-relay invers-arp<br />
R3(config)# interface serial0/0/1.301 point-to-point<br />
R3(config-if)# no frame-relay invers-arp<br />
<br />
• R2(config)# interface serial0/0/1.201 point-to-point<br />
R2(config-if)# frame-relay interface-dlci 201<br />
R3(config)# interface serial0/0/1.301 point-to-point<br />
R3(config-if)# frame-relay interface-dlci 301<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Refer to the exhibit. What can be known about the configuration of router R1 from the output?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The Frame Relay LMI DLCI has been incorrectly configured as DLCI 1023.<br />
The Frame Relay LMI type has been changed from its default.<br />
The Serial 0/0/0 interface has been configured as a data communications equipment device.<br />
• The command encapsulation frame-relay ietf has been used on the Serial 0/0/0 interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Refer to the exhibit. What can be determined about the configuration of router R1 from the exhibited output?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
LMI updates are not being received properly.<br />
• The LMI type for the Serial 0/0/0 interface has been left to its default configuration.<br />
Cisco HDLC is used as a Layer 2 encapsulation protocol on the Serial 0/0/0 interface.<br />
The Serial 0/0/0 interface has been configured as a data communications equipment device.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. Refer to the exhibit. What can be determined from the output?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Serial 0/0/0 has been configured with an DLCI of 201.<br />
• Serial 0/0/0 has the feature frame-relay inverse-arp enabled.<br />
Serial 0/0/0 has been configured with an IP address of 172.16.4.3.<br />
Serial 0/0/0 has been configured with the command frame-relay map ip 172.16.4.3 201 broadcast.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">22. Refer to the exhibit. Router R1 has been configured for Frame Relay connectivity to routers R2 and R3. What configuration option should be configured on the R2 and R3 serial interfaces in order for all routers to ping each other successfully?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
R2(config-if)# frame-relay interface-dlci 201 broadcast<br />
R3(config-if)# frame-relay interface-dlci 301 broadcast<br />
<br />
R2(config-if)# frame-relay map ip 10.1.1.1 201 broadcast<br />
R3(config-if)# frame-relay map ip 10.1.1.1 301 broadcast<br />
<br />
R2(config-if)# frame-relay map ip 10.1.1.3 201 broadcast<br />
R3(config-if)# frame-relay map ip 10.1.1.2 301 broadcast<br />
<br />
• R2(config-if)# frame-relay map ip 10.1.1.1 201 broadcast<br />
R2(config-if)# frame-relay map ip 10.1.1.3 201 broadcast<br />
R3(config-if)# frame-relay map ip 10.1.1.1 301 broadcast<br />
R3(config-if)# frame-relay map ip 10.1.1.2 301 broadcast </div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">-------------------------------------------------------------------------------- </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-6009262974482341922010-04-25T08:43:00.000-07:002010-04-25T08:43:23.960-07:00CCNA 4 Exploration v4.0 - Chapter 1<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b>Chapter 1 - Correct Answers 100%</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b><br />
</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b><br />
</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">1. At which two layers of the OSI model does a WAN operate? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**Physical Layer<br />
**Data Link Layer<br />
Network Layer<br />
Transport Layer<br />
Presentation Layer<br />
Application Layer<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which three WAN devices can be found in the cloud? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
** ATM switches<br />
**core routers<br />
CSU/DSU<br />
Ethernet switches<br />
**Frame Relay switches<br />
repeaters<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. Which networking device is typically used to concentrate the dialin and dialout traffic of multiple users to and from a network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
core router<br />
** access server<br />
Frame Relay switch<br />
ATM switch<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Which packetswitched WAN technology offers highbandwidth connectivity capable of managing data, voice, and video all on the same infrastructure?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Time Division Multiplexing (TDM)<br />
**metro Ethernet<br />
Integrated Services Digital Network (ISDN)<br />
Public Switched Telephone Network (PSTN)<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Which three features are identified with Frame Relay connections? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
** CIR<br />
**DLCI<br />
DSLAM<br />
** PVC<br />
SPID<br />
53byte cells<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**ATM<br />
ISDN<br />
Frame Relay<br />
metro Ethernet<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. What are two advantages of an analog PSTN WAN connection? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
** low cost<br />
** availability<br />
traffic encryption<br />
available bandwidth<br />
support for voice and video<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. What three terms are associated with ISDN PRI? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
DLCI<br />
** circuit switching<br />
packet switching<br />
** data bearer channels<br />
switched virtual circuits<br />
** time-division multiplexing<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. What can cause a reduction in available bandwidth on a cable broadband connection?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
smaller cells<br />
** number of subscribers<br />
committed information rate<br />
distance from the central office of the provider<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. What type of connectivity is established when VPNs are used from the remote site to the private network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
PVCs<br />
DLCIs<br />
**tunnels<br />
virtual circuits<br />
dedicated Layer 2 links<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. A U.S. company requires a WAN connection used only to transfer sales data from individual stores to the home office. All transfers will occur after business hours. The required bandwidth for this connection is estimated to be less than 38 kbps. Which type of connection requires the least investment for this company?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ATM<br />
ISDN<br />
** analog dialup<br />
T1 Leased Line<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. For digital lines, which device is used to establish the communications link between the customer equipment and the local loop?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**CSU/DSU<br />
Frame Relay switch<br />
ISDN switch<br />
modem<br />
PBX switch<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Which term describes a device that will put data on the local loop?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
DLCI<br />
DTE<br />
** DCE<br />
BRI<br />
PRI<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Which switching type will allow the communication devices in the provider network to be shared and only allocated to an individual subscriber during data transfer?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
circuitswitched<br />
dedicated switched lines<br />
frame-switched<br />
**packet-switched<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum data rate of 155 Mbps. Which WAN connection is the best choice?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
X.25<br />
DSL<br />
** ATM<br />
ISDN BRI<br />
ISDN PRI<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. Which two devices are commonly used as data communications equipment? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
** modem<br />
router<br />
**CSU/DSU<br />
ISDN switch<br />
Ethernet switch<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Which statement is true of the functionality of the layers in the hierarchical network model?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The purpose of the access layer is to provide very high bandwidth communications between network devices.<br />
Most security screening to prevent unauthorized entry to the network happens at the core layer.<br />
Untrusted external connections are segmented from the rest of the network at all three levels.<br />
The core layer uses high speed equipment to provide policybased connectivity.<br />
** The distribution layer aggregates WAN connections at the edge of the campus.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. Which statement is true about data connectivity between a customer and a service provider?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Normally the CSU/DSU is the designated demarcation point for the service provider but not the customer.<br />
** The segment between the demarcation point and the central office is known as the "last mile."<br />
The local loop is the segment between the CSU/DSU and the serial port on a router.<br />
Putting data on the local loop is the responsibility of the DTE.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Which statement is true about the differences between a WAN and a LAN?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
WANs generally support higher bandwidth than LANs support.<br />
A WAN link typically traverses shorter geographic distances than a LAN link traverses.<br />
** A WAN often relies on the services of carriers, such as telephone or cable companies, but a LAN does not.<br />
All WAN implementations generally use the same Layer 2 protocol but there are many accepted LAN Layer 2 protocols in use.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Why is the call setup time of a circuitswitched WAN implementation considered a drawback?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Routing protocols are incompatible with this function.<br />
It restricts the communication sent to voice traffic only.<br />
A telephone must be used to initially start transferring data.<br />
**Data cannot be transferred until a circuit has been established.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. Which statement about WAN protocols is correct?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
ATM differs from other WAN protocols in that it uses variably sized packets.<br />
** Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.<br />
The frame header consists of the frame check sequence and cyclic redundancy check.<br />
ISDN differs from Frame Relay, HDLC, and ATM in that it is packetswitched rather than circuitswitched technology.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">22. What is an advantage of packetswitched technology over circuitswitched technology?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Packetswitched networks are less susceptible to jitter than circuitswitched networks are.<br />
** Packetswitched networks can efficiently use multiple routes inside a service provider network.<br />
Packetswitched networks do not require an expensive permanent connection to each endpoint.<br />
Packetswitched networks usually experience lower latency than circuitswitched networks experience. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-45541566280369911372010-04-24T11:58:00.000-07:002010-04-24T15:47:03.333-07:00CCNA 3 exploration - Final Exam<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b>CCNA 3 - final exam </b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
1. Refer to the exhibit. The Fast Ethernet port Fa0/1 on the switch is configured for auto-negotiate speed/duplex settings, and the NIC on the machine is set to 100 Mbps, full-duplex. The log error message shown has been received. What two solutions could fix the problem? (Choose two.)<br />
<br />
Configure the switch manually for auto-negotiate speed/duplex and the NIC on the machine for 100 Mbps, half-duplex.<br />
**Configure both sides of the link for auto-negotiate speed/duplex settings.<br />
**Manually configure both sides of the link for 100 Mbps, full-duplex.<br />
Manually configure the switch for 100 Mbps, full-duplex, and the NIC on the machine for auto-negotiate.<br />
Manually configure the switch for 1000 Mbps, full-duplex, and the NIC on the machine for auto-negotiate.<br />
<br />
<br />
2. Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and Host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?<br />
<br />
Allow all VLANs on the trunk link.<br />
**Configure the same native VLAN on both ends of the trunk.<br />
Include a router or switch with Layer 3 capabilities.<br />
Remove the native VLAN from the trunk.<br />
Configure ISL encapsulation on both ends of the trunk.<br />
<br />
<br />
3. What are two benefits of the IEEE 802.11n standard? (Choose two.)<br />
<br />
single-input, single-output<br />
**improved range<br />
requires less equipment<br />
hardware upgrade for compatibility<br />
**increased data rates<br />
<br />
<br />
4. Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. What configuration should be applied to SW2 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?<br />
<br />
Configure SW2 as a VTP server with a higher revision number.<br />
**Configure SW2 as a VTP client.<br />
Configure SW2 in VTP transparent mode.<br />
Configure SW2 with no VTP domain password.<br />
Disable VTP pruning on SW2.<br />
<br />
<br />
5. Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the same time. How do the hosts respond on the network? (Choose two.)<br />
<br />
Hosts 1 and 4 may be operating full duplex so no collision will exist.<br />
The hub will block the port connected to Host 4 to prevent a collision.<br />
**After the end of the jam signal, a backoff algorithm is invoked.<br />
Hosts 1 and 4 are assigned shorter backoff values to provide them priority to access the media.<br />
**If a host has data to transmit after the backoff period of that host, the host checks to determine if the line is idle, before transmitting.<br />
<br />
<br />
6. Refer to the exhibit. Which statement is true regarding the information shown?<br />
<br />
Only one VLAN is currently configured to use the trunk links.<br />
Inter-VLAN routing is not functioning because the switch is still in the process of negotiating the trunk link.<br />
**Interfaces gi0/1 and fa0/1 are carrying data from multiple VLANs.<br />
The interfaces shown are shut down.<br />
<br />
<br />
7. Refer to the exhibit. After the listed commands are entered into router R1 and switch S1, the administrator enters the show interface fa0/1 trunk and gets the results shown. What is the likely problem?<br />
<br />
The trunk is established, but no VLANs have been configured to use it.<br />
**The trunk has not been established because the router does not support dynamic trunking protocol.<br />
The router, the switch, or both must be configured with the dynamic desirable option for dynamic trunking protocol to establish a trunk.<br />
The router is missing the dynamic trunking protocol statements necessary to form a trunk.<br />
<br />
<br />
8. Refer to the exhibit. Which device is the authenticator?<br />
<br />
**access point<br />
data server<br />
client<br />
RADIUS server<br />
<br />
<br />
9. What three radio frequency bands are designated by the ITU-R as unlicensed for industrial, scientific, and medical (ISM) communities and are therefore supported by IEEE 802.11? (Choose three.)<br />
<br />
**900 MHz<br />
9 MHz<br />
**2.4 GHz<br />
5.7 GHz<br />
**5 GHz<br />
900 GHz<br />
<br />
<br />
10. What three tasks should be performed before moving a Catalyst switch to a new VTP management domain? (Choose three.)<br />
<br />
**Verify that the new switch has a lower configuration revision number than the other switches in the domain.<br />
Reset the VTP counters to allow the switch to synchronize with the other switches in the domain.<br />
Download the VTP database from the VTP server in the new domain.<br />
Configure the VTP server in the domain to recognize the BID of the new switch.<br />
**Select the correct VTP mode and version.<br />
**Configure the switch with the name of the new management domain.<br />
<br />
<br />
11. Which three configurations are required to allow remote access to a switch using the telnet command? (Choose three.)<br />
<br />
**default gateway<br />
**vty line password<br />
console line password<br />
HTTP server interface authentication<br />
**IP address of the switch on the management VLAN<br />
duplex and speed on the Ethernet port used for the connection<br />
<br />
<br />
12. What are three benefits of a hiearchical network design model? (Choose three.)<br />
<br />
**scalability<br />
higher speed<br />
mobility<br />
**security<br />
**manageability<br />
cost<br />
<br />
<br />
13. Refer to the exhibit. The network administrator has added VoIP telephones and a VoIP gateway computer to the existing switch infrastructure, and then created the VLANs. What must be done to converge the network?<br />
<br />
Combine all traffic except management traffic to a single VLAN.<br />
Combine all traffic including management traffic to a single VLAN.<br />
Use Layer 3 switching to combine the voice and data traffic at S1.<br />
**The network is already converged.<br />
Implement a common IP addressing scheme for both VoIP phones and PCs.<br />
<br />
<br />
14. Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping Pc3 but cannot ping Pc1. What is a possible cause for this failure?<br />
<br />
**S1 port fa0/11 is in the wrong VLAN.<br />
Pc1 IP address is incorrect.<br />
R1 does not have an active routing protocol.<br />
Router interface fa0/0 has the wrong trunk encapsulation type configured.<br />
<br />
<br />
15. Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP addresses should be assigned to this new host?<br />
<br />
192.168.1.1 /26<br />
192.168.1.11 /28<br />
**192.168.1.22 /28<br />
192.168.1.33 /28<br />
192.168.1.44 /28<br />
192.168.1.55 /28<br />
<br />
<br />
16. Refer to the exhibit. Each switch is shown with its MAC address. Which switch will be elected as the spanning-tree root bridge if the switches are configured with their default priority values?<br />
<br />
switch A<br />
switch B<br />
switch C<br />
switch D<br />
switch E<br />
**switch F<br />
<br />
<br />
17. Refer to the exhibit. All switches are configured with rapid PVST+. Port Gi0/2 on S2 is the root port. A network administrator issues the spanning-tree link-type point-to-point command on port Gi0/1 for switch S2. What is the result of this command?<br />
<br />
**If the link between D1 and C1 fails, port Gi0/2 on S2 rapidly transitions to the forwarding state.<br />
PortFast is enabled on Gi0/2 on S2.<br />
Port Gi0/2 on S2 becomes a designated port.<br />
Broadcast packets are restricted on the link between S2 and D1.<br />
Port Gi0/2 on S2 becomes an edge port.<br />
<br />
<br />
<br />
18. Refer to the exhibit. The switches are configured for VTP as shown. Which two statements correctly describe the operation of these switches? (Choose two.)<br />
<br />
A new VLAN can be added to Switch1 and that information will be added only to Switch2.<br />
An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4.<br />
A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2, and Switch3.<br />
**A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4.<br />
A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2, and Switch4.<br />
**An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2.<br />
<br />
<br />
<br />
19. Refer to the exhibit. A host attached to port Fa0/3 of the switch can communicate with the host connected to port Fa0/16, but cannot communicate with the host connected to port Fa0/2. What could account for this failure?<br />
<br />
Fa0/3 is down.<br />
The trunk link to the router is down.<br />
**The VLAN0010 network address is missing from the routing table.<br />
Fa0/2 has been assigned to the administrative VLAN.<br />
The router does not have a functional routing protocol installed.<br />
<br />
<br />
20. A network administrator wants to add a new switch to the existing VTP domain. The new switch will have a VLAN that the administrator does not want visible to any other switches. All other VLANs should be visible on all switches, and all VLANs should be visible to the new switch. Which solution meets the requirements with the least administrative effort?<br />
<br />
Add the switch in server mode. After all VLANs have propagated to the new switch, change the trunked link to access mode. Add the private VLAN to the new switch.<br />
Add the switch in server mode. Add an extended range VLAN to the new switch as the private VLAN.<br />
Add the switch in server mode. Add the private VLAN to the new switch. Enable VTP pruning and ensure that no ports are placed in the private VLAN on any other switches.<br />
**Add the switch in client mode. After the existing VLANs have propagated, change the switch to transparent mode. Add the private VLAN.<br />
Add the switch in VTP transparent mode. Manually add all VLANs to the switch.<br />
<br />
<br />
21. Refer to the exhibit. Host A sends a broadcast message. Which devices will see the broadcast?<br />
<br />
all hosts<br />
Host B and the router<br />
**Host C and the router<br />
the router, Host C, and all the hosts connected to Hub1<br />
<br />
<br />
22. Refer to the exhibit. Which three options correctly identify information that could be associated with this output?(Choose three.)<br />
<br />
An IP address should be applied to FastEthernet3/0/0 for correct data routing.<br />
**Standardized trunking protocol is used.<br />
A shutdown command has been applied to interface FastEthernet3/0/0.<br />
**The configuration is appropriate for a router-on-a-stick network design.<br />
**Interface FastEthernet3/0/0 is subinterfaced.<br />
Interface FastEthernet3/0/0.3 is mapped to the default administrative VLAN.<br />
<br />
<br />
23. Refer to the exhibit. Spanning-tree port priorities are listed beneath each interface. The network administrator enters the spanning-tree vlan 1 root primary command on S4. Which three port results are correct? (Choose three.)<br />
<br />
**S1 Gi0/1 becomes a root port.<br />
S3 Gi0/1 becomes a non-designated port.<br />
S4 Gi0/1 becomes a root port.<br />
**S4 Gi0/2 becomes a designated port.<br />
S2 Gi0/2 becomes a non-designated port.<br />
**S1 Gi0/2 becomes a non-designated port.<br />
<br />
<br />
24. Refer to the exhibit. Switches C1, D1, D2, and S2 have all been configured with RSTP. S1 and S3 are not capable of rapid PVST+ and are in the default configuration. What three implications does this have for the Layer 2 network? (Choose three.)<br />
<br />
Because S1 and S3 are not trunking, they have no spanning-tree instance.<br />
A topology change BPDU from C1 forces the uplinks on S1 and S3 to stop forwarding traffic for twice the forward delay time.<br />
**Port Gi0/1 on D1 and port Gi0/1 on D2 become designated ports.<br />
**Loss of the root port link on S2 causes a rapid transition to non-designated port on S2.<br />
**PortFast can be enabled on all ports on S1 and S3.<br />
Gi0/1 on S1 and Gi0/1 on S3 become designated ports.<br />
<br />
<br />
25. Refer to the exhibit. The network administrator enters the configuration shown to allow both SSH and Telnet connections to the switch. The Telnet connections fail. What is the most likely cause of this problem?<br />
<br />
The SSH version number is wrong.<br />
**SSH has been configured on the wrong line.<br />
The transport input command is configured incorrectly.<br />
Telnet and SSH cannot be configured simultaneously.<br />
<br />
<br />
26. Refer to the exhibit. On the basis of the configuration shown, how will an Ethernet frame on port GigabitEthernet0/1 be modified?<br />
<br />
802.1Q encapsulation prepends a 4-byte tag field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame.<br />
**802.1Q encapsulation inserts a 4-byte tag field into the original Ethernet frame between the source address and type or length fields.<br />
802.1Q encapsulation prepends an 802.1p field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame.<br />
802.1Q encapsulation inserts an 802.1p field into the original Ethernet frame between the source address and type or length fields.<br />
<br />
<br />
27. Refer to the exhibit. Which two statements are true regarding what the cost value of 23 represents for Switch4? (Choose two.)<br />
<br />
**This cost represents the lowest cost path for Switch4 to the root switch.<br />
A cost of 23 is the value being advertised out port 16 on the switch upstream (closer) to the root switch.<br />
Switch4 adds the cost of a Fast Ethernet link to 23 to determine its total cost to reach the root switch.<br />
**Switch4 is connected via a Fast Ethernet link to an upstream switch that in turn is directly connected to the root switch via a Gigabit Ethernet link.<br />
The root switch is advertising a cost of 23, which is lower than any other switch in the VLAN0001 spanning-tree domain.<br />
<br />
<br />
28. Which two statements describe Spanning Tree Protocol? (Choose two.)<br />
<br />
**It eliminates Layer 2 loops in network topologies.<br />
It eliminates the need for redundant physical paths in network topologies.<br />
**It can only be used in networks in which Layer 2 switching is in use.<br />
It can only be used in networks where both routers and switches are used together.<br />
It can only be used in networks where routers are installed.<br />
<br />
<br />
29. Refer to the exhibit. What three statements describe why Host1 and Host2 are unable to communicate? (Choose three.)<br />
<br />
**A router is required to forward traffic between the hosts.<br />
**The switch ports are on different VLANs.<br />
The VLAN port assignments must be contiguous for each VLAN.<br />
The host default gateway addresses must be on the same logical network.<br />
The switch IP address is on the wrong subnet.<br />
**The hosts are configured on different logical networks.<br />
<br />
30. What happens when the crypto key zeroize rsa command is entered on a switch configured with the transport input ssh command on the vty lines?<br />
<br />
A new RSA key pair is created.<br />
The switch defaults to allowing Telnet connections only.<br />
The switch is no longer able to make SSH connections as an SSH client.<br />
**The switch allows remote connections only after a new RSA key pair is generated.<br />
<br />
<br />
31. How can the SSID for a wireless network connection be verified?<br />
<br />
From the Network Connections menu, choose Add Wireless Network.<br />
From the Network Connections menu, choose Properties.<br />
**From the Network Connections menu, choose View Wireless Network.<br />
From the Network Connections menu, choose Support.<br />
<br />
<br />
32. In which mode is a VTP switch operating if it has been configured to only forward VTP advertisements?<br />
<br />
client<br />
root<br />
server<br />
**transparent<br />
nontransparent<br />
<br />
<br />
33. Refer to the exhibit. Two Catalyst switches are connected, and both switches have ports configured for VLANs 40 and 50 as shown. What will allow hosts on the same VLAN to communicate with one another across the different switches?<br />
<br />
**trunking<br />
STP<br />
VTP<br />
routing<br />
<br />
<br />
34. Which statement regarding the service password-encryption command is true?<br />
<br />
It is configured in privileged EXEC mode.<br />
It encrypts only line mode passwords.<br />
**As soon as the service password-encryption command is entered, all currently set passwords formerly displayed in plain text are encrypted.<br />
To see the passwords encrypted by the service password-encryption command in plain text, issue the no service password-encryption command.<br />
<br />
<br />
35. Refer to the exhibit. What does "FORWARDING" mean in the command output shown?<br />
<br />
The switch is receiving BPDUs, but not sending data frames.<br />
The switch is participating in an election process by forwarding the BPDUs it receives.<br />
**The switch is sending and receiving data frames.<br />
The switch is receiving BPDUs and populating the MAC address table, but not sending data.<br />
<br />
<br />
36. Why is it important that the network administrator consider the spanning-tree network diameter when choosing the root bridge?<br />
<br />
The cabling distance between the switches is 100 meters.<br />
The network diameter limitation is 9.<br />
Convergence is slower as the BPDU travels away from the root.<br />
**BPDUs may be discarded because of expiring timers.<br />
<br />
<br />
37. Refer to the exhibit. Hosts PC_A and PC_B send traffic simultaneously, and the frames from the transmitting stations collide. How far is the collision propagated?<br />
<br />
hub HB1<br />
**switch SW1<br />
switch SW2<br />
router R1<br />
router R2<br />
<br />
<br />
38. Which method establishes an administrative connection to the wireless access point?<br />
<br />
Associate with the access point and then open a HyperTerminal session with the access point.<br />
Physically connect to the access point and then reboot the computer to launch the configuration software.<br />
**From a computer in the same IP subnet as the access point, enter the default IP address of the access point in a web browser.<br />
Modify the TCP/IP properties of the computer connected to the access point so that it exists on the same network, and then reboot your computer to establish a connection.<br />
<br />
<br />
39. Refer to the exhibit. All the VLANs configured on S2 are present on S1 but not S3. All switches are set to VTP server mode and have identical VTP domain names configured. What is the likely problem?<br />
<br />
**The connection from S1 to S3 is not trunking.<br />
S3 does not have a management VLAN configured.<br />
The VLAN 99 interface on S3 is in a different subnet than S1 and S2.<br />
S3 was joined to the network with a lower revision number than S1.<br />
<br />
<br />
40. Refer to the exhibit. All devices in the network are interconnected via trunk links with VTP pruning enabled on all three switches. Which VLANs will be pruned from switch SW3?<br />
<br />
**VLAN 10 and VLAN 20<br />
VLAN 1, VLAN 10, and VLAN 20<br />
VLAN 1, VLAN 1002 through 1005<br />
VLAN 1, VLAN 10, VLAN 20, VLAN 1002 through 1005<br />
<br />
<br />
41. Refer to the exhibit. A packet is received on the FastEthernet 0/1 physical interface from VLAN 1. The packet destination address is 192.168.1.85. What will the router do with this packet?<br />
<br />
The router will ignore the packet because the source and destination are on the same broadcast domain.<br />
The router will forward the packet out interface FastEthernet 0/1.1.<br />
**The router will forward the packet out interface FastEthernet 0/1.2.<br />
The router will forward the packet out interface FastEthernet 0/1.3.<br />
The router will drop the packet since no network that includes the source address is attached to the router.<br />
<br />
<br />
42. Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?<br />
<br />
**The newly inserted switch has a higher VTP server revision number, which caused the VLAN information in the VTP domain to be deleted.<br />
The newly inserted switch has pruning enabled, which causes pruning of all VLANs from the trunk port.<br />
The newly inserted switch received more VLANs from a connected switch than the switch can support.<br />
Switches can exchange VTP information only through an access link.<br />
<br />
<br />
43. Refer to the exhibit. What is the consequence if SW1 port F0/0 is configured as an edge port?<br />
<br />
SW1 port F0/0 transitions to the learning state.<br />
**SW1 port F0/0 can generate a temporary loop while in the sync state.<br />
SW1 port F0/0 becomes a non-designated port.<br />
SW1 port F0/2 no longer passes BPDUs to SW4.<br />
SW4 port F0/10 is forced into the blocking state.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">44. Refer to the exhibit. An Ethernet switch has developed the CAM table shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**forward the frame out all interfaces except Interface3<br />
add station 00-00-3D-1F-11-05 to Interface2 in the forwarding table<br />
forward the frame out Interface3<br />
discard the frame<br />
forward the frame out all interfaces<br />
forward the frame out Interface2<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">45. Power over Ethernet (PoE) allows the switch to provide power to which two types of devices? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
printer<br />
**wireless access points<br />
desktop PC<br />
**IP phones<br />
Scanners<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">46. Refer to the exhibit. Three new VLANs have been configured to improve the performance of the network. Host A would like to send a frame destined to Host B. Which statement is true about the process of sending the frame?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Host A sends an ARP request to the default gateway configured for VLAN10 to resolve destination MAC to IP address mapping. Then the frame is sent to switch SW1 only to switch the traffic to Host B.<br />
**Host A sends an ARP request to the default gateway for VLAN10 to resolve destination MAC to IP address mapping. Then the frame is sent to router R1 to route the traffic to the appropriate VLAN.<br />
Host A broadcasts an ARP request to the members of all VLANs. If none of the hosts replies with a corresponding IP address, the frame is dropped.<br />
Because Host A and Host B are connected to the same switch SW1, Host A forwards the frame to Host B directly.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">47. Which command finds the next available parameter for the SwitchX# clock command with the fewest keystrokes?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
SwitchX# clock?<br />
SwitchX# clock then Tab<br />
SwitchX# clock then Ctrl-P<br />
**SwitchX# clock ?<br />
SwitchX# clock then "help"<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">48. Which three statements are true regarding router-on-a-stick inter-VLAN routing? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
makes troubleshooting the inter-VLAN routing configuration much less complex than when using multiple physical interface<br />
**requires the use of subinterfaces on the router<br />
requires each subinterface to be configured with the no shut command<br />
**can impact performance if many VLANs compete for bandwidth on a single router interface<br />
requires an access link between the router and Layer 2 switch<br />
**more cost-efficient and scalable than using multiple physical interfaces<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">49. Refer to the exhibit. Two switches, SW1 and SW2, are interconnected via a trunk link. Host A is on the native VLAN. How does untagged traffic coming from Host A traverse the trunk link?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
SW1 tags the traffic with the lowest VLAN ID value and forwards it over the trunk link.<br />
SW1 tags the traffic with the highest VLAN ID value and forwards it over the trunk link.<br />
**The untagged traffic is forwarded as part of the native VLAN.<br />
The untagged traffic is dropped because the trunk forwards only tagged frames.<br />
SW1 encapsulates the traffic with 802.1p encapsulation and forwards it over the trunk link.<br />
SW1 encapsulates the traffic with 802.1Q encapsulation and forwards it over the trunk link.</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">50. Refer to the exhibit. What encryption algorithm does the 802.11i standard employ for data encryption?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
PSK<br />
TKIP<br />
WEP<br />
**AES<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">51. A network administrator is tasked to select hardware to support a large enterprise, switched network. The system requires redundant backplane interconnections between eight high port density switches. Which hardware solution would be appropriate for this enterprise?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
modular switches<br />
fixed configuration switches<br />
**stackable switches<br />
uplink capable switches<br />
link aggregated switches<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">52. Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**Cat-A<br />
Cat-B<br />
Cat-C<br />
Cat-D<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">53. What two methods can be used to remove MAC address table entries from a switch? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
**Power cycle the switch to clear all dynamically learned addresses.<br />
The clear switching-tables command will remove statically configured entries.<br />
**The clear mac-address-table command will remove statically and dynamically configured table entries.<br />
The erase flash command will clear all statically configured table entries.<br />
Statically configured MAC addresses will automatically be removed from the address table 300 minutes after the last activity on a switch port.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">54. Which three statements are correct concerning the default configuration of a new switch? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
VLAN1 is configured with a management IP address.<br />
**All switch ports are assigned to VLAN1.<br />
Spanning Tree Protocol is disabled.<br />
**All interfaces are set to auto.<br />
Enable password is configured as cisco.<br />
**The flash directory contains the IOS image.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">55. An access point supports both the 802.11g and 802.11b standards. A device that supports only 802.11b attempts to connect to the access point. What happens to the connection?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The network does not connect unless the user is within line of sight of the access point.<br />
**The access point and all other connected users defer to the 802.11b standard.<br />
The access point always maintains the higher standard and automatically upgrades the 802.11b device to the 802.11g speed.<br />
Each user gets the speed supported by the wireless NIC on their mobile device.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">56. Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.<br />
**Reconfigure the trunk port on switch SW2 with static trunk configuration.<br />
Configure VLANs with different VLAN IDs on switch SW2.<br />
Trunk mode can be configured on Gigabit Ethernet interfaces only.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">57. What two tasks must be performed when deleting an entire VLAN? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Delete the vlan.dat file from flash.<br />
Reboot the switch in order for the changes to take effect.<br />
**Use the negative form of the command that was used to create the VLAN.<br />
**Reassign the switch ports from the deleted VLAN to other VLANs if they are to be used.<br />
Use the erase vlan command in global configuration mode.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">58. How does an Ethernet switch handle traffic if the shared memory buffers and the port memory buffers are full?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The switch allocates additional buffers in NVRAM.<br />
The switch defragments the frame and stores it in NVRAM.<br />
The switch routes the packet to the destination port.<br />
**The switch drops the traffic. </div><div class="post-footer" style="font-family: "Trebuchet MS",sans-serif;"><div class="post-footer-line post-footer-line-1"><span class="post-author vcard"> </span> <span class="post-timestamp"> </span> <span class="reaction-buttons"> </span> <span class="star-ratings"> </span> <span class="post-comment-link"> </span> <span class="post-backlinks post-comment-link"> </span> <span class="post-icons"> </span> </div><div class="post-footer-line post-footer-line-2"><span class="post-labels"> </span> </div><div class="post-footer-line post-footer-line-3"><span class="post-location"> </span> </div></div><a href="http://www.blogger.com/post-edit.g?blogID=3628914570771483194&postID=4554156628036991137" name="comments" style="font-family: "Trebuchet MS",sans-serif;"></a> <br />
<h4 style="font-family: "Trebuchet MS",sans-serif;"><br />
</h4>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com1tag:blogger.com,1999:blog-3628914570771483194.post-7345893545939979062010-04-24T11:54:00.000-07:002010-04-24T11:54:17.534-07:00CCNA 3 Exploration - FInal Exam - Coming SoonHere comes the final ...PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-73927697090906145672010-04-23T02:04:00.000-07:002010-04-23T02:04:21.516-07:00CCNA 3 Exploration - Chapter 7<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b>Chapter 7 - Exam Answers</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Which two conditions have favored adoption of 802.11g over 802.11a? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• 802.11a suffers from a shorter range than 802.11g.<br />
The 2.4 GHz frequency band is not as crowded as the 5 GHz band.<br />
802.11a is more susceptible to RF interference from common commercial items.<br />
802.11a uses a more expensive modulation technique than 802.11g.<br />
• 802.11g is backward compatible with 802.11b, but 802.11a is not.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which two statements concerning network security are accurate? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
802.11i uses 3DES for encryption.<br />
• Open authentication uses no client or AP verification.<br />
The 802.11i protocol is functionally identical to WPA.<br />
• 802.11i incorporates a RADIUS server for enterprise authentication.<br />
A wireless client first associates with an AP and then authenticates for network access.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. Which installation method will allow connectivity for a new wireless network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
set up WEP on the access point only<br />
• set up open access on both the access point and each device connected to it<br />
set up full encryption on the access point while leaving each device connected to the network open<br />
set up full encryption on each device of the WLAN while leaving the access point settings open<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Refer to the exhibit. When configuring the wireless access point, which setting does the network administrator use to configure the unique identifier that client devices use to distinguish this wireless network from others?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Network Mode<br />
• Network Name (SSID)<br />
Radio Band<br />
Wide Channel<br />
Standard Channel<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Which two statements are true regarding wireless security? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
MAC address filtering prevents the contents of wireless frames from being viewable.<br />
Providing a wireless client with the network key allows an available network to be visible.<br />
Disabling an access point from broadcasting the SSID prevents the access point from being discovered.<br />
• Default SSIDs on specific manufacturer APs are generally known and may permit hostile wireless connections.<br />
• Manually adding a network and setting the known SSID on a wireless client makes the network visible even if the SSID is not being broadcast.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Wireless users on a network complain about poor performance within a small area of a room. Moving away from this area in any direction improves performance dramatically. What is the first step in designing a solution to this problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• This might be RF channel overlap, so the technician should verify the channels in use on each wireless access point and change to non-overlapping channels.<br />
The RF power settings might be set too low on the wireless access points servicing the room. Increase the RF output power on all wireless access points.<br />
Install a new wireless access point in this center area to provide coverage.<br />
Verify that the wireless access points have sufficient in-line power and connectivity to the wired network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Which three devices do many wireless routers incorporate? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• gateway for connecting to other network infrastructures<br />
• built-in Ethernet switch<br />
network management station<br />
VTP server<br />
• wireless access point<br />
VPN concentrator<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Which access method does a wireless access point use to allow for multiple user connectivity and distributed access?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
CSMA/CD<br />
token passing<br />
• CSMA/CA<br />
polling<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Why is security so important in wireless networks?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Wireless networks are typically slower than wired networks.<br />
Televisions and other devices can interfere with wireless signals.<br />
• Wireless networks broadcast data over a medium that allows easy access.<br />
Environmental factors such as thunderstorms can affect wireless networks.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Which wireless technology standard provides the most compatibility with older wireless standards, but has greater performance?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
802.11a<br />
802.11b<br />
802.11g<br />
• 802.11n<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Which two statements characterize wireless network security? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• A rogue access point represents a security risk for the local network.<br />
Wireless networks offer the same security features as wired networks.<br />
Using encryption prevents unauthorized clients from associating with an access point.<br />
An attacker needs physical access to at least one network device to launch an attack.<br />
• With SSID broadcast disabled, an attacker must sniff the SSID before being able to connect.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Which network design process identifies where to place access points?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• site survey<br />
risk assessment<br />
scalability design<br />
network protocol analysis<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. What wireless security feature allows a network administrator to configure an access point with wireless NIC unique identifiers so that only these NICs can connect to the wireless network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
authentication<br />
SSID broadcasting<br />
• MAC address filtering<br />
EAP (Extensible Authentication Protocol)<br />
Radius (Remote Authentication Dial-In User Service)<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. What will a wireless client transmit to discover the available WLAN networks?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
beacon<br />
password<br />
• probe request<br />
association request<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. In a WLAN network, why should wireless access points be implemented with each access point using a different channel?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
to keep users segregated on separate subnets<br />
to control the amount of bandwidth that is utilized<br />
• to keep signals from interfering with each other<br />
to keep traffic secure<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. What purpose does authentication serve in a WLAN?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
converts clear text data before transmission<br />
indicates which channel the data should flow on<br />
• determines that the correct host is utilizing the network<br />
allows the host to choose which channel to use<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. What occurs when a rogue access point is added to a WLAN?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Authorized access points can transmit excess traffic to rogue access points to help alleviate congestion.<br />
• Unauthorized users can gain access to internal servers, thus causing a security hole.<br />
All traffic that uses the same channel as the rogue access point will be encrypted.<br />
All traffic that uses the same channel as the rogue access point will be required to authenticate.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. What procedure can prevent man-in-the-middle attacks?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Force all devices on a WLAN to authenticate and monitor for any unknown devices.<br />
Enable access points to send an SSID to each device wanting to use the network.<br />
Configure MAC filtering on all authorized access points.<br />
Disable SSID broadcasts.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Which function is provided by a wireless access point?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
dynamically assigns an IP address to the host<br />
provides local DHCP services<br />
• converts data from 802.11 to 802.3 frame encapsulation<br />
provides a gateway for connecting to other networks<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Which major problem does CSMA/CA overcome in wireless networks?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
bandwidth saturation<br />
privacy concerns<br />
• media contention<br />
device interoperability<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. What does a wireless access point use to allow WLAN clients to learn which networks are available in a given area?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
association response<br />
• beacon<br />
key<br />
probe request </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-55987512966419866552010-04-23T02:02:00.000-07:002010-04-23T02:02:16.055-07:00CCNA 3 Exploration - Chapter 6<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b>Chapter 6 - Exam Answers</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Refer to the exhibit. Which three statements describe the network design shown in the exhibit? (Choose three.)<br />
<br />
• This design will not scale easily.<br />
The router merges the VLANs into a single broadcast domain.<br />
• This design uses more switch and router ports than are necessary.<br />
This design exceeds the maximum number of VLANs that can be attached to a switch.<br />
This design requires the use of the ISL or 802.1q protocol on the links between the switch and the router.<br />
• If the physical interfaces between the switch and router are operational, the devices on the different VLANs can communicate through the router.</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. A router has two FastEthernet interfaces and needs to connect to four VLANs in the local network. How can this be accomplished using the fewest number of physical interfaces without unnecessarily decreasing network performance?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Implement a router-on-a-stick configuration.<br />
Add a second router to handle the inter-VLAN traffic.<br />
Use a hub to connect the four VLANS with a FastEthernet interface on the router.<br />
Interconnect the VLANs via the two additional FastEthernet interfaces.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. Refer to the exhibit. All devices are configured as shown in the exhibit. PC2 can successfully ping the F0/0 interface on R1. PC2 cannot ping PC1. What might be the reason for this failure?<br />
<br />
R1 interface F0/1 has not been configured for subinterface operation.<br />
S1 interface F0/6 needs to be configured for operation in VLAN10.<br />
• S1 interface F0/8 is in the wrong VLAN.<br />
S1 port F0/6 is not in VLAN10.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Refer to the exhibit. The commands for a router to connect to a trunked uplink are shown in the exhibit. A packet is received from IP address 192.168.1.54. The packet destination address is 192.168.1.120. What will the router do with this packet?<br />
<br />
The router will forward the packet out interface FastEthernet 0/1.1 tagged for VLAN 10.<br />
• The router will forward the packet out interface FastEthernet 0/1.2 tagged for VLAN 60.<br />
The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 120.<br />
The router will not process the packet since the source and destination are on the same subnet. The router will drop the packet since no network that includes the source address is attached to the router.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. What distinguishes traditional routing from router-on-a-stick?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Traditional routing is only able to use a single switch interface. Router-on-a-stick can use multiple switch interfaces.<br />
Traditional routing requires a routing protocol. Router-on-a-stick only needs to route directly connected networks.<br />
• Traditional routing uses one port per logical network. Router-on-a-stick uses subinterfaces to connect multiple logical networks to a single router port.<br />
Traditional routing uses multiple paths to the router and therefore requires STP. Router-on-a-stick does not provide multiple connections and therefore eliminates the need for STP.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Which statement is true about ARP when inter-VLAN routing is being used on the network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
When router-on-a-stick inter-VLAN routing is in use, each subinterface has a separate MAC address to send in response to ARP requests.<br />
When VLANs are in use, the switch responds to ARP requests with the MAC address of the port to which the PC is connected.<br />
• When router-on-a-stick inter-VLAN routing is in use, the router returns the MAC address of the physical interface in response to ARP requests.<br />
When traditional inter-VLAN routing is in use, devices on all VLANs use the same physical router interface as their source of proxy ARP responses.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. What two statements are true regarding the use of subinterfaces for inter-VLAN routing? (Choose two.)<br />
subinterfaces have no contention for bandwidth<br />
more switch ports required than in traditional inter-VLAN routing<br />
• fewer router ports required than in traditional inter-VLAN routing<br />
simpler Layer 3 troubleshooting than with traditional inter-VLAN routing<br />
• less complex physical connection than in traditional inter-VLAN routing<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. Which three elements must be used when configuring a router interface for VLAN trunking? (Choose three.)<br />
• one subinterface per VLAN<br />
one physical interface for each subinterface<br />
• one IP network or subnetwork for each subinterface<br />
one trunked link per VLAN<br />
a management domain for each subinterface<br />
• a compatible trunking protocol encapsulation for each subinterface<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Refer to the exhibit. Which two statements are true about the operation of the subinterfaces? (Choose two.)<br />
<br />
• Incoming traffic that has a VLAN ID of 2 is processed by subinterface fa0/0.2.<br />
Incoming traffic with VLAN ID 0 is processed by interface fa0/0.<br />
Subinterfaces use unique MAC addresses by adding the 802.1Q VLAN ID to the hardware address.<br />
• Traffic inbound on this router is processed by different subinterfaces, depending on the VLAN from which the traffic originated.<br />
Reliability of both subinterfaces is poor because ARP is timing out.<br />
Both subinterfaces remain up with line protocol up, even if fa0/0 line protocol is down.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. Port Fa0/0 on router R1 is connected to port Fa0/1 on switch S1. After the commands shown are entered on both devices, the network administrator determines that the devices on VLAN 2 are unable to ping the devices on VLAN 1. What is the likely problem?<br />
<br />
• R1 is configured for router-on-a-stick, but S1 is not configured for trunking.<br />
R1 does not have the VLANs entered in the VLAN database.<br />
Spanning Tree Protocol is blocking port Fa0/0 on R1.<br />
The subinterfaces on R1 have not been brought up with the no shutdown command yet.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Refer to the exhibit. PC1 has attempted to ping PC2 but has been unsuccessful. What could account for this failure?<br />
<br />
PC1 and R1 interface F0/0.1 are on different subnets.<br />
The encapsulation is missing on the R1 interface F0/0.<br />
An IP address has not been assigned to the R1 physical interface.<br />
• The encapsulation command on the R1 F0/0.3 interface is incorrect.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Refer to the exhibit. R1 is routing between networks 192.168.10.0/28 and 192.168.30.0/28. PC1 can ping R1 interface F0/1, but cannot ping PC3. What is causing this failure?<br />
<br />
PC1 and PC3 are not in the same VLAN.<br />
• The PC3 network address configuration is incorrect.<br />
The S1 interface F0/11 should be assigned to VLAN30.<br />
The F0/0 and F0/1 interfaces on R1 must be configured as trunks.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Devices on the network are connected to a 24-port Layer 2 switch that is configured with VLANs. Switch ports 0/2 to 0/4 are assigned to VLAN 10. Ports 0/5 to 0/8 are assigned to VLAN 20, and ports 0/9 to 0/12 are assigned to VLAN 30. All other ports are assigned to the default VLAN. Which solution allows all VLANs to communicate between each other while minimizing the number of ports necessary to connect the VLANs?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Configure ports 0/13 to 0/16 with the appropriate IP addresses to perform routing between VLANs.<br />
• Add a router to the topology and configure one FastEthernet interface on the router with multiple subinterfaces for VLANs 1, 10, 20, and 30.<br />
Obtain a router with multiple LAN interfaces and configure each interface for a separate subnet, thereby allowing communication between VLANs.<br />
Obtain a Layer 3 switch and configure a trunk link between the switch and router, and configure the router physical interface with an IP address on the native VLAN.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Which two statements are true about the interface fa0/0.10 command? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The command applies VLAN 10 to router interface fa0/0.<br />
• The command is used in the configuration of router-on-a-stick inter-VLAN routing.<br />
• The command configures a subinterface.<br />
The command configures interface fa0/0 as a trunk link.<br />
Because the IP address is applied to the physical interface, the command does not include an IP address.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. What two conclusions can be drawn from the output that is shown? (Choose two.)<br />
<br />
The no shutdown command has not been issued on the FastEthernet 0/0 interface.<br />
• Both of the directly connected routes that are shown will share the same physical interface of the router.<br />
A routing protocol must be configured on the network in order for the inter-VLAN routing to be successful.<br />
• Inter-VLAN routing between hosts on the 172.16.10.0/24 and 172.16.30.0/24 networks is successful on this network.<br />
Hosts in this network must be configured with the IP address that is assigned to the router physical interface as their default gateway.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. What are the steps which must be completed in order to enable inter-VLAN routing using router-on-a-stick?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Configure the physical interfaces on the router and enable a routing protocol.<br />
Create the VLANs on the router and define the port membership assignments on the switch.<br />
Create the VLANs on the switch to include port membership assignment and enable a routing protocol on the router.<br />
• Create the VLANs on the switch to include port membership assignment and configure subinterfaces on the router matching the VLANs.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Refer to the exhibit. The network administrator correctly configures RTA to perform inter-VLAN routing. The administrator connects RTA to port 0/4 on SW2, but inter-VLAN routing does not work. What could be the possible cause of the problem with the SW2 configuration?<br />
<br />
Port 0/4 is not active.<br />
Port 0/4 is not a member of VLAN1.<br />
• Port 0/4 is configured in access mode.<br />
Port 0/4 is using the wrong trunking protocol.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. What is important to consider while configuring the subinterfaces of a router when implementing inter-VLAN routing?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The physical interface must have an IP address configured.<br />
The subinterface numbers must match the VLAN ID number.<br />
The no shutdown command must be given on each subinterface.<br />
• The IP address of each subinterface must be the default gateway address for each VLAN subnet.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. In which situation could individual router physical interfaces be used for InterVLAN routing, instead of a router-on-a-stick configuration?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
a network with high traffic requirements<br />
• a network with a limited number of VLANs<br />
a network with experienced support personnel<br />
a network using a router with one LAN interface<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. Refer to the exhibit. Switch1 is correctly configured for the VLANs that are displayed in the graphic. The configuration that is shown was applied to RTA to allow for interVLAN connectivity between hosts attached to Switch1. After testing the network, the administrator logged the following report:<br />
Hosts within each VLAN can communicate with each other. Hosts in VLAN5 and VLAN33 are able to communicate with each other. Hosts connected to Fa0/1 through Fa0/5 do not have connectivity to host in other VLANs. Why are hosts connected to Fa0/1 through Fa0/5 unable to communicate with hosts in different VLANs?</div><div style="font-family: "Trebuchet MS",sans-serif;"></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">The router interface is shut down.<br />
The VLAN IDs do not match the subinterface numbers.<br />
All of the subinterface addresses on the router are in the same subnet.<br />
• The router was not configured to forward traffic for VLAN2.<br />
The physical interface, FastEthernet0/0, was not configured with an IP address. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-13384514990341660662010-04-22T15:20:00.000-07:002010-04-22T15:20:43.619-07:00CCNA 3 Exploration - Chapter 5<div style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: large;"><b>Chapter 5 - Exam Answers</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Which two statements are true about the default operation of STP in a Layer 2 switched environment that has redundant connections between switches? (Choose two.)<br />
<br />
The root switch is the switch with the highest speed ports.<br />
*Decisions on which port to block when two ports have equal cost depend on the port priority and identity.<br />
All trunking ports are designated and not blocked.<br />
Root switches have all ports set as root ports.<br />
* Non-root switches each have only one root port.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which two statements describe the BIDs used in a spanning tree topology? (Choose two.)<br />
<br />
They are sent out by the root bridge only after the inferior BPDUs are sent.<br />
*They consist of a bridge priority and MAC address.<br />
Only the root bridge will send out a BID.<br />
*They are used by the switches in a spanning tree topology to elect the root bridge.<br />
The switch with the fastest processor will have the lowest BID.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. In which two ways is the information that is contained in BPDUs used by switches? (Choose two.)<br />
<br />
to negotiate a trunk between switches<br />
to set the duplex mode of a redundant link<br />
*to identify the shortest path to the root bridge<br />
to prevent loops by sharing bridging tables between connected switches<br />
*to determine which ports will forward frames as part of the spanning tree<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Which two actions does an RSTP edge port take if it receives a BPDU? (Choose two.)<br />
<br />
*immediately loses its edge status<br />
inhibits the generation of a TCN<br />
goes immediately to a learning state<br />
disables itself<br />
*becomes a normal spanning-tree port<br />
<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Refer to the exhibit. All switches in the network have empty MAC tables. STP has been disabled on the switches in the network. How will a broadcast frame that is sent by host PC1 be handled on the network?<br />
<br />
ImageSwitch SW1 will block the broadcast and drop the frame.<br />
*Switch SW1 will forward the broadcast out all switch ports, except the originating port. This will generate an endless loop in the network.<br />
Switch SW1 will forward the broadcast out all switch ports, except the originating port. All hosts in the network will replay with a unicast frame sent to host PC1.<br />
Switch SW1 will forward the traffic out all switch ports except the originating port as a unicast frame. All hosts in the network will replay with a unicast frame sent to switch SW1.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. Which two items are true regarding the spanning-tree portfast command? (Choose two.)<br />
*PortFast is Cisco proprietary.<br />
PortFast can negatively effect DHCP services.<br />
PortFast is used to more quickly prevent and eliminate bridging loops.<br />
Enabling PortFast on trunks that connect to other switches improves convergence.<br />
*If an access port is configured with PortFast, it immediately transitions from a blocking to a forwarding state.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Refer to the exhibit. Server sends an ARP request for the MAC address of its default gateway. If STP is not enabled, what will be the result of this ARP request?<br />
<br />
Router_1 will drop the broadcast and reply with the MAC address of the next hop router.<br />
Switch_A will reply with the MAC address of the Router_1 E0 interface.<br />
*Switch_A and Switch_B will continuously flood the message onto the network.<br />
The message will cycle around the network until its TTL is exceeded.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. What is the first step in the process of convergence in a spanning tree topology?<br />
<br />
*election of the root bridge<br />
blocking of the non-designated ports<br />
selection of the designated trunk port<br />
determination of the designated port for each segment<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. How can a network administrator influence which STP switch becomes the root bridge?<br />
<br />
Configure all the interfaces on the switch as the static root ports.<br />
Change the BPDU to a lower value than that of the other switches in the network.<br />
Assign a lower IP address to the switch than that of the other switches in the network.<br />
*Set the switch priority to a smaller value than that of the other switches in the network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. The spanning-tree port priority of each interface is at the default setting. The network administrator enters the spanning-tree vlan 1 root primary command on S4. What is the effect of the command?<br />
Image<br />
panning tree blocks Gi 0/1 on S3.<br />
*Gi 0/2 on S3 transitions to a root port.<br />
Port priority makes Gi 0/2 on S1 a root port.<br />
S4 is already the root bridge, so there are no port changes.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. What two features of the Spanning-Tree Protocol contribute to the time it takes for a switched network to converge after a topology change occurs? (Choose two.)<br />
<br />
*the max-age timer<br />
the spanning-tree hold down timer<br />
*the forward delay<br />
the spanning-tree path cost<br />
the blocking delay<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. In which STP state does a port record MAC addresses but not forward user data?<br />
<br />
blocking<br />
*Learning<br />
disabling<br />
listening<br />
forwarding<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Which three statements are accurate regarding RSTP and STP? (Choose three.)<br />
<br />
RSTP uses a faster algorithm to determine root ports.<br />
RSTP introduced the extended system ID to allow for more than 4096 VLANs.<br />
*Both RSTP and STP use the portfast command to allow ports to immediately transition to forwarding state.<br />
Like STP PortFast, an RSTP edge port that receives a BPDU loses its edge port status immediately and becomes a normal spanning-tree port.<br />
*Configuration commands to establish primary and secondary root bridges are identical for STP and RSTP.<br />
*Because of the format of the BPDU packet, RSTP is backward compatible with STP.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. What two elements will exist in a converged network with one spanning tree? (Choose two.)<br />
<br />
*one root bridge per network<br />
all non-designated ports forwarding<br />
*one root port per non-root bridge<br />
multiple designated ports per segment<br />
one designated port per network<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Which statement or set of paired statements correctly compares STP with RSTP?<br />
<br />
STP and RSTP use the same BPDU format.<br />
STP specifies backup ports. RSTP has only root ports, alternate ports, and designated ports.<br />
STP port states are independent of port roles. RSTP ties together the port state and port role.<br />
*STP waits for the network to converge before placing ports into forwarding state. RSTP places alternate ports into forwarding state immediately.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. Refer to the exhibit. What can be determined from the output shown?<br />
<br />
Two hosts communicating between ports Fa 0/2 and Fa 0/4 have a cost of 38.<br />
*The priority was statically configured to identify the root.<br />
STP is disabled on this switch.<br />
The timers have been altered to reduce convergence time.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Which two criteria does a switch use to select the root bridge? (Choose two.)<br />
<br />
*bridge priority<br />
switching speed<br />
number of ports<br />
*base MAC address<br />
switch location<br />
memory size<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. What three link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.)<br />
<br />
*Shared<br />
end-to-end<br />
*edge-type<br />
boundary-type<br />
point-to-many<br />
*point-to-point<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. What Rapid Spanning Tree Protocol (RSTP) role is assigned to the forwarding port elected for every switched Ethernet LAN segment?<br />
<br />
alternate<br />
backup<br />
*Designated<br />
root<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. When PVST+ was developed, the Bridge ID was modified to include which information?<br />
<br />
bridge priority<br />
MAC address<br />
protocol<br />
*VLAN ID </div><div class="post-footer" style="font-family: "Trebuchet MS",sans-serif;"> <div class="post-footer-line post-footer-line-1"> <span class="post-author vcard"> </span> <span class="post-timestamp"> </span> <span class="reaction-buttons"> </span> <span class="star-ratings"> </span> <span class="post-comment-link"> </span> <span class="post-backlinks post-comment-link"> </span> <span class="post-icons"> </span> </div><div class="post-footer-line post-footer-line-2"> <span class="post-labels"> </span> </div><div class="post-footer-line post-footer-line-3"> <span class="post-location"> </span> </div></div><a href="" name="comments" style="font-family: "Trebuchet MS",sans-serif;"></a> <h4 style="font-family: "Trebuchet MS",sans-serif;"><br />
</h4>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-59442035388295427012010-04-22T15:09:00.000-07:002010-04-22T15:09:43.679-07:00CCNA 3 Exploration - Chapter 4<span style="font-family: "Trebuchet MS",sans-serif;"> </span><span style="font-family: "Trebuchet MS",sans-serif; font-size: large;"><b>Chapter 4 - Exam Answers</b></span><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches shown in the exhibit. What are two possible reasons for this? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Switch2 is in transparent mode.<br />
Switch1 is in client mode.<br />
• Switch1 is using VTP version 1 and Switch2 is using VTP version 2.<br />
Switch2 is in server mode.<br />
• Switch1 is in a different management domain.<br />
Switch1 has no VLANs.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Refer to the exhibit. Switches SW1 and SW2 are interconnected via a trunk link but failed to exchange VLAN information. The network administrator issued the show vtp status command to troubleshoot the problem. On the basis of the output provided, what could be done to fix the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The switches must be interconnected via access link.<br />
Switch SW2 must be configured as a VTP client.<br />
Both switches must be configured as VTP clients.<br />
Both switches must be configured with the same VTP revision number.<br />
• The switches must be configured with the same VTP domain name.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• If this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own<br />
• VLAN information to be more recent than the VLAN information advertised by this switch.<br />
This switch shows no configuration revision errors.<br />
This switch has established two-way communication with the neighboring devices.<br />
This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain.<br />
This switch is configured to allows the network manager to maximize bandwidth by restricting traffic to specific network devices.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Which two statements describe VTP transparent mode operation? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Transparent mode switches can create VLAN management information.<br />
• Transparent mode switches can add VLANs of local significance only.<br />
• Transparent mode switches pass any VLAN management information that they receive to other switches.<br />
Transparent mode switches can adopt VLAN management changes that are received from other switches.<br />
Transparent mode switches originate updates about the status of their VLANS and inform other switches about that status.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Refer to the exhibit. Switch2 was previously used in a lab environment and has been added to the production network in server mode. The lab and production networks use the same VTP domain name, so the network administrator made no configuration changes to Switch2 before adding it to the production network. The lab domain has a higher revision number. After Switch2 was added to the production network, many computers lost network connectivity. What is the quickest way to solve the problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Reset the revision number on Switch2 with either the delete VTP command or by changing the domain name and then changing it back.<br />
Change Switch1 to transparent VTP mode to reclaim all VLANs in vlan.dat, and then change back to server mode.<br />
Change Switch2 to client mode so the VLANs will automatically repopulate.<br />
• Re-enter all appropriate VLANs, except VLAN 1, manually on Switch1 so that they repropagate throughout the network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. What causes a VTP configured switch to issue a summary advertisement?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
A new host has been attached to a switch in the management domain.<br />
A port on a switch in the management domain has changed to blocking mode.<br />
• A five-minute update timer has elapsed.<br />
The advertisement revision number has reached n+1.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Which two statements describe VTP client mode operation. (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• can add VLANs of local significance only<br />
can only adopt VLAN management changes<br />
• can create and adopt updated VLAN management information<br />
can only pass VLAN management information without adopting changes<br />
can add VLANs to domain<br />
cannot add VLANs<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8 Which statement is true when VTP is configured on a switched network that incorporates VLANs?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
VTP is only compatible with the 802.1Q standard.<br />
VTP adds to the complexity of managing a switched network.<br />
A switch configured for VTP can belong to more than one VTP domain.<br />
• VTP dynamically communicates VLAN additions, deletions and modifications to all switches in the same VTP domain.<br />
VTP advertisements are passed over access links to other switches.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. Refer to the exhibit. All switches in the VTP domain are new. Switch SW1 is configured as a VTP server, switches SW2 and SW4 are configured as VTP clients, and switch SW3 is configured in VTP transparent mode. Which switch or switches receive VTP updates and synchronize their VLAN configuration based on those updates?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
All switches receive updates and synchronize VLAN information.<br />
Only switch SW2 receives updates and synchronizes VLAN information.<br />
• SW3 and SW4 receive updates, but only switch SW4 synchronizes VLAN information.<br />
Only switches SW3 and SW4 receive updates and synchronize VLAN information.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. Refer to the exhibit. What information can be learned from the output provided?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It verifies the configured VTP password.<br />
It verifies the VTP domain is configured to use VTP version 2.<br />
• It verifies VTP advertisements are being exchanged.<br />
It verifies the VTP domain name is V1.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Which statement is true about the VTP pruning process?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
VTP pruning automatically updates all switches within the VTP domain with VLAN information.<br />
VTP pruning updates all switches within the VTP domain with information about pruning-eligible VLANs.<br />
VTP pruning updates all switches within the VTP domain with information about pruning-ineligible VLANs.<br />
• VTP pruning prevents flooded traffic from crossing trunk links to switches that do not need to process the flood traffic.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Refer to the exhibit. The switches in the exhibit are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
VLANs cannot be created on transparent mode switches.<br />
Server mode switches neither listen to nor forward VTP messages from transparent mode switches.<br />
• VLANs created on transparent mode switches are not included in VTP advertisements.<br />
There are no ports assigned to the new VLAN on the other switches.<br />
Transparent mode switches do not forward VTP advertisements.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. What does a client mode switch in a VTP management domain do when it receives a summary advertisement with a revision number higher than its current revision number?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
It suspends forwarding until a subset advertisement update arrives.<br />
• It issues an advertisement request for new VLAN information.<br />
It increments the revision number and forwards it to other switches.<br />
It deletes the VLANs not included in the summary advertisement.<br />
It issues summary advertisements to advise other switches of status changes.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Which three VTP parameters must be identical on all switches to participate in the same VTP domain? (Choose three.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
revision number<br />
• domain name<br />
pruning<br />
mode<br />
• domain password<br />
• version number<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. All switches in the network participate in the same VTP domain. What happens when the new switch SW2 with a default configuration and revision number of 0 is inserted in the existing VTP domain Lab Network?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The switch operates as a VTP client.<br />
switch operates in VTP transparent mode.<br />
• The switch operates as a VTP server and deletes the existing VLAN configuration in the domain.<br />
The switch operates as a VTP server, but does not impact the existing VLAN configuration in the domain.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. Refer to the exhibit. Switch S1 is in VTP server mode. Switches S2 and S3 are in client mode. An administrator accidentally disconnects the cable from F0/1 on S2. What will the effect be?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
S2 loses all VLANs until the cable is reconnected.<br />
S2 automatically transitions to VTP transparent mode.<br />
• S2 does not send a VTP request advertisement unless it is reloaded.<br />
S2 automatically sends a VTP request advertisement to 172.17.99.11 when the cable is reconnected.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Which two statements are true about the implementation of VTP? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• Switches must be connected via trunks.<br />
• The VTP domain name is case sensitive.<br />
Transparent mode switches cannot be configured with new VLANs.<br />
The VTP password is mandatory and case sensitive.<br />
Switches that use VTP must have the same switch name. </div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0tag:blogger.com,1999:blog-3628914570771483194.post-25832359599187891322010-04-21T16:41:00.000-07:002010-04-21T16:41:48.636-07:00CCNA3 V4.0 Exploration - Chapter 3<div style="font-family: "Trebuchet MS",sans-serif;"> <span style="font-size: large;"><b>Chapter 3 - Exam Answers</b></span></div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
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</div><div style="font-family: "Trebuchet MS",sans-serif;">1. What statement about the 802.1q trunking protocol is true?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
802.1q is Cisco proprietary.<br />
802.1q frames are mapped to VLANs by MAC address.<br />
802.1q does NOT require the FCS of the original frame to be recalculated.<br />
• 802.1q will not perform operations on frames that are forwarded out access ports.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">2. Which two statements describe the benefits of VLANs? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
VLANs improve network performance by regulating flow control and window size.<br />
VLANs enable switches to route packets to remote networks via VLAN ID filtering.<br />
VLANs reduce network cost by reducing the number of physical ports required on switches.<br />
• VLANs improve network security by isolating users that have access to sensitive data and applications.<br />
• VLANs divide a network into smaller logical networks, resulting in lower susceptibility to broadcast storms.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">3. What are two characteristics of VLAN1 in a default switch configuration? (Choose two.)<br />
VLAN1 should renamed.</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• VLAN 1 is the management VLAN.<br />
• All switch ports are members of VLAN1.<br />
Only switch port 0/1 is assigned to VLAN1.<br />
Links between switches must be members of VLAN1.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">4. Refer to the exhibit. SW1 and SW2 are new switches being installed in the topology shown in the exhibit. Interface Fa0/1 on switch SW1 has been configured with trunk mode “on”. Which statement is true about forming a trunk link between the switches SW1 and SW2?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Interface Fa0/2 on switch SW2 will negotiate to become a trunk link if it supports DTP.<br />
• Interface Fa0/2 on switch SW2 can only become a trunk link if statically configured as a trunk.<br />
Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link if the neighboring interface is configured in nonegotiate mode.<br />
Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link automatically with no consideration of the configuration on the neighboring interface.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">5. Refer to the exhibit. Computer 1 sends a frame to computer 4. On which links along the path between computer 1 and computer 4 will a VLAN ID tag be included with the frame?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
A<br />
A, B<br />
A, B, D, G<br />
A, D, F<br />
• C, E<br />
C, E, F<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">6. The network administrator wants to separate hosts in Building A into two VLANs numbered 20 and 30. Which two statements are true concerning VLAN configuration? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The VLANs may be named.<br />
VLAN information is saved in the startup configuration.<br />
Non-default VLANs created manually must use the extended range VLAN numbers.<br />
• The network administrator may create the VLANs in either global configuration mode or VLAN database mode.<br />
Both VLANs may be named BUILDING_A to distinguish them from other VLANs in different geographical locations.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">7. Refer to the exhibit. Which two conclusions can be drawn regarding the switch that produced the output shown? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The network administrator configured VLANs 1002-1005.<br />
The VLANs are in the active state and are in the process of negotiating configuration parameters.<br />
A FDDI trunk has been configured on this switch.<br />
• The command switchport access vlan 20 was entered in interface configuration mode for Fast Ethernet interface 0/1.<br />
• Devices attached to ports fa0/5 through fa0/8 cannot communicate with devices attached to ports fa0/9 through fa0/12 without the use of a Layer 3 device.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">8. What happens to the member ports of a VLAN when the VLAN is deleted?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• The ports cannot communicate with other ports.<br />
The ports default back to the management VLAN.<br />
The ports automatically become a part of VLAN1.<br />
The ports remain a part of that VLAN until the switch is rebooted. They then become members of the management VLAN.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">9. A network administrator is removing several VLANs from a switch. When the administrator enters the no vlan 1 command, an error is received. Why did this command generate an error?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
• VLAN 1 can never be deleted.<br />
VLAN 1 can only be deleted by deleting the vlan.dat file.<br />
VLAN 1 can not be deleted until all ports have been removed from it.<br />
VLAN 1 can not be deleted until another VLAN has been assigned its responsibilities.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">10. What is the effect of the switchport mode dynamic desirable command?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
DTP cannot negotiate the trunk since the native VLAN is not the default VLAN.<br />
The remote connected interface cannot negotiate a trunk unless it is also configured as dynamic desirable.<br />
The connected devices dynamically determine when data for multiple VLANs must be transmitted across the link and bring the trunk up as needed.<br />
• A trunk link is formed if the remote connected device is configured with the switchport mode dynamic auto or switchport mode trunk commands.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">11. Refer to the exhibit. The exhibited configurations do not allow the switches to form a trunk. What is the most likely cause of this problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Cisco switches only support the ISL trunking protocol.<br />
• The trunk cannot be negotiated with both ends set to auto.<br />
By default, Switch1 will only allow VLAN 5 across the link.<br />
A common native VLAN should have been configured on the switches.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">12. Switch port fa0/1 was manually configured as a trunk, but now it will be used to connect a host to the network. How should the network administrator reconfigure switch port Fa0/1?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Disable DTP.<br />
Delete any VLANs currently being trunked through port Fa0/1.<br />
Administratively shut down and re-enable the interface to return it to default.<br />
• Enter the switchport mode access command in interface configuration mode.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">13. Refer to the exhibit. Computer B is unable to communicate with computer D. What is the most likely cause of this problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The link between the switches is up but not trunked.<br />
VLAN 3 is not an allowed VLAN to enter the trunk between the switches.<br />
The router is not properly configured to route traffic between the VLANs.<br />
• Computer D does not have a proper address for the VLAN 3 address space.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">14. Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2 and assigned hosts on the IP addresses of the VLAN in the 10.1.50.0/24 subnet range. Computer A can communicate with computer B, but not with computer C or computer D. What is the most likely cause of this problem?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
There is a native VLAN mismatch.<br />
The link between Switch1 and Switch2 is up but not trunked.<br />
The router is not properly configured for inter-VLAN routing.<br />
• VLAN 50 is not allowed to entering the trunk between Switch1 and Switch2.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">15. Refer to the exhibit. Which statement is true concerning interface Fa0/5?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The default native VLAN is being used.<br />
The trunking mode is set to auto.<br />
• Trunking can occur with non-Cisco switches.<br />
VLAN information about the interface encapsulates the Ethernet frames.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">16. What statements describe how hosts on VLANs communicate?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Hosts on different VLANs use VTP to negotiate a trunk.<br />
• Hosts on different VLANs communicate through routers.<br />
Hosts on different VLANs should be in the same IP network.<br />
Hosts on different VLANs examine VLAN ID in the frame tagging to determine if the frame for their network.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">17. Refer to the exhibit. How far is a broadcast frame that is sent by computer A propagated in the LAN domain?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
none of the computers will receive the broadcast frame<br />
computer A, computer B, computer C<br />
computer A, computer D, computer G<br />
computer B, computer C<br />
• computer D, computer G<br />
computer A, computer B, computer C, computer D, computer E, computer F, computer G, computer H, computer I<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">18. What is a valid consideration for planning VLAN traffic across multiple switches?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Configuring interswitch connections as trunks will cause all hosts on any VLAN to receive broadcasts from the other VLANs.<br />
• A trunk connection is affected by broadcast storms on any particular VLAN that is carried by that trunk.<br />
Restricting trunk connections between switches to a single VLAN will improve efficiency of port usage.<br />
Carrying all required VLANs on a single access port will ensure proper traffic separation.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">19. Which two statements about the 802.1q trunking protocol are true? (Choose two.)</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
802.1q is Cisco proprietary.<br />
802.1q frames are mapped to VLANs by MAC address.<br />
• If 802.1q is used on a frame, the FCS must be recalculated.<br />
• 802.1q will not perform operations on frames that are forwarded out access ports.<br />
802.1q allows the encapsulation of the original frame to identify the VLAN from which a frame originated.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">20. What switch port modes will allow a switch to successfully form a trunking link if the neighboring switch port is in "dynamic desirable" mode?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
dynamic desirable mode<br />
on or dynamic desirable mode<br />
• on, auto, or dynamic desirable mode<br />
on, auto, dynamic desirable, or nonegotiate mode<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">21. Refer to the exhibit. Company HR is adding PC4, a specialized application workstation, to a new company office. The company will add a switch, S3, connected via a trunk link to S2, another switch. For security reasons the new PC will reside in the HR VLAN, VLAN 10. The new office will use the 172.17.11.0/24 subnet. After installation, the existing PCs are unable to access shares on PC4. What is the likely cause?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
The switch to switch connection must be configured as an access port to permit access to VLAN 10 on S3.<br />
The new PC is on a different subnet so Fa0/2 on S3 must be configured as a trunk port.<br />
• PC4 must use the same subnet as the other HR VLAN PCs.<br />
A single VLAN cannot span multiple switches.<br />
<br />
</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
</div><div style="font-family: "Trebuchet MS",sans-serif;">22. What must the network administrator do to remove Fast Ethernet port fa0/1 from VLAN 2 and assign it to VLAN 3?</div><div style="font-family: "Trebuchet MS",sans-serif;"><br />
Enter the no vlan 2 and the vlan 3 commands in global configuration mode.<br />
• Enter the switchport access vlan 3 command in interface configuration mode.<br />
Enter the switchport trunk native vlan 3 command in interface configuration mode.<br />
Enter the no shutdown in interface configuration mode to return it to the default configuration and then configure the port for VLAN 3. <span style="font-size: large;"><b><br />
</b></span></div>PRAjiTURAhttp://www.blogger.com/profile/10414020730376133350noreply@blogger.com0