CCNA3 FINAL - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0)

Take Assessment - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0) 
November 02, 2010
           
1
 
Refer to the exhibit. An administrator documented the output of a CAM table from an Ethernet switch as shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?

discard the frame

forward the frame out port 2

forward the frame out port 3

forward the frame out all ports

forward the frame out all ports except port 3

add station 00-00-3D-1F-11-05 to port 2 in the forwarding table

   
2

Refer to the exhibit. An administrator issues the commands as shown on SwitchB. What is the result for port Fa0/22?

CCNA2 - Final (E)

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1
Which routing protocol maintains a topology table separate from the routing table?
IGRP
RIPv1
RIPv2
*EIGRP

2



Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each
other. What can be the cause of this problem?
Because RIPv1 is a classless protocol, it does not support this access.
*RIPv1 does not support discontiguous networks.
RIPv1 does not support load balancing.
RIPv1 does not support automatic summarization.
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3
Which two statements are correct about the split horizon with poison reverse method of routing loop prevention? (Choose
two.)
It is enabled by default on all Cisco IOS implementations.
*It assigns a value that represents an infinite metric to the poisoned route.
It sends back the poisoned route update to the same interface from where it was received.
It instructs routers to hold all changes that might affect routes, for a specified period of time.
*It limits the number of hops a packet can traverse through the network before it is discarded.

Holddown timers are used to prevent regular update messages from inappropriately reinstating a route that may have gone bad. The split horizon rule says that a router should not advertise a network through the interface from which the update came. Route poisoning is used to mark the route as unreachable in a routing update that is sent to other routers. The rule for split horizon with poison reverse states when sending updates out a specific interface, designate any networks that were learned on that interface as unreachable.

4
What are two reasons for the occurrence of a routing loop? (Choose two.)
slow convergence
*incorrectly configured static routes
routes that are learned via two routing protocols
*static and dynamic routing being used on the same router
lack of a default route on the router that connects to the Internet

The loop may be a result of: Incorrectly configured static routes Incorrectly configured route redistribution (redistribution is a process of handing the routing information from one routing protocol to another routing protocol and is discussed in CCNP-level courses) Inconsistent routing tables not being updated due to slow convergence in a changing network Incorrectly configured or installed discard routes

5
All routers in a network are configured in a single OSPF area with the same priority value. No loopback interface has been
set on any of the routers. Which secondary value will the routers use to determine the router ID?
The highest MAC address among the active interfaces of the network will be used.
There will be no router ID until a loopback interface is configured.
The highest IP address among the active FastEthernet interfaces that are running OSPF will be used.
*The highest IP address among the active interfaces will be used.

Determining the Router ID The OSPF router ID is used to uniquely identify each router in the OSPF routing domain. A router ID is simply an IP address. Cisco routers derive the router ID based on three criteria and with the following precedence: 1. Use the IP address configured with the OSPF router-id command. 2. If the router-id is not configured, the router chooses highest IP address of any of its loopback interfaces. 3. If no loopback interfaces are configured, the router chooses highest active IP address of any of its physical interfaces.

6



Refer to the exhibit. Although R2 is configured correctly, host A is unable to access the Internet. What are two static
routes that can be configured on R1, either of which would enable Internet connectivity for host A? (Choose two.)

ip route 0.0.0.0 0.0.0.0 Fa0/0
*ip route 0.0.0.0 0.0.0.0 Fa0/1
ip route 0.0.0.0 0.0.0.0 10.1.1.1
*ip route 0.0.0.0 0.0.0.0 10.1.1.2
ip route 209.165.202.0 255.255.255.0 10.1.1.1

7
What is the function of the OSPF LSR packet?
It is used to confirm the receipt of LSUs.
It is used to establish and maintain adjacency with other OSPF routers.
*It is used by the receiving routers to request more information about any entry in the DBD.
It is used to check the database synchronization between routers


1. Hello - Hello packets are used to establish and maintain adjacency with other OSPF routers. 2. DBD - The Database Description (DBD) packet contains an abbreviated list of the sending router's link-state database and is used by receiving routers to check against the local link-state database. 3. LSR - Receiving routers can then request more information about any entry in the DBD by sending a Link-State Request (LSR). 4. LSU - Link-State Update (LSU) packets are used to reply to LSRs as well as to announce new information. LSUs contain seven different types of Link-State Advertisements (LSAs). LSUs and LSAs are briefly discussed in a later topic. 5. LSAck - When an LSU is received, the router sends a Link-State Acknowledgement (LSAck) to confirm receipt of the LSU.

8



Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is
connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC
mode?
Cisco001
Cisco123
*Cisco789
Cisco901

9
Which two technologies can be used in distance vector routing protocols to prevent routing loops? (Choose two.)
authentication
link-state advertisements
*hold-down timers
Spanning Tree Protocol
*split horizon


Holddown timers are used to prevent regular update messages from inappropriately reinstating a route that may have gone bad. The split horizon rule says that a router should not advertise a network through the interface from which the update came. Route poisoning is used to mark the route as unreachable in a routing update that is sent to other routers. The rule for split horizon with poison reverse states when sending updates out a specific interface, designate any networks that were learned on that interface as unreachable.
10



Refer to the exhibit. An administrator is adding a new subnet of 50 hosts to R3. Which subnet address should be used for
the new subnet that provides enough addresses while wasting a minimum of addresses?

192.168.1.0/24
192.168.1.48 /28
192.168.1.32/27
*192.168.1.64/26

11
*192.168.1.64/26

Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?

The IP address of host A is incorrect.
The default gateway of host A is incorrect.
*The Fa0/1 interfaces of the two routers are configured for different subnets.
The subnet mask for the Fa0/0 interface of R1 is incorrect.


12
A network administrator uses the RIP routing protocol to implement routing within an autonomous system. What are two
characteristics of this protocol? (Choose two.)
*It uses the Bellman-Ford algorithm to determine the best path.
It displays an actual map of the network topology.
It offers rapid convergence in large networks.
*It periodically sends complete routing tables to all connected devices.
It is beneficial in complex and hierarchically designed networks.
13

Refer to the exhibit. What is the meaning of the highlighted value 2?
It is the administrative distance of the routing protocol.
*It is the number of hops between R2 and the 192.168.8.0/24 network.
It is the value used by the DUAL algorithm to determine the bandwidth for the link.
It is the convergence time measured in seconds.

14



Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose
two.)
*10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
*192.168.2.0/24


Ingat recursive lookup , ingat (via)^_^
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15

Refer to the exhibit. The 10.4.0.0 network fails. What mechanism prevents R2 from receiving false update information
regarding the 10.4.0.0 network?
*split horizon
hold-down timers
route poisoning
triggered updates

Holddown timers are used to prevent regular update messages from inappropriately reinstating a route that may have gone bad. The split horizon rule says that a router should not advertise a network through the interface from which the update came. Route poisoning is used to mark the route as unreachable in a routing update that is sent to other routers. The rule for split horizon with poison reverse states when sending updates out a specific interface, designate any networks that were learned on that interface as unreachable.


16

Refer to the exhibit. The routers are properly configured using a dynamic routing protocol with default settings, and the
network is fully converged. Router A is forwarding data to router E. Which statement is true about the routing path?
*If the network uses the RIP protocol, router A will determine that all paths have equal cost.
If the network uses the RIP protocol, router A will update only the A-C-E path in its routing table.
If the network uses the EIGRP routing protocol, router A will determine that path A-D-E has the lowest cost.
If both RIP and EIGRP protocols are configured on router A, the router will use the route information that is
learned by the RIP routing protocol.


17

Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands,
which statement is true?
The wildcard mask is incorrectly configured.
A default route must be configured on every router.
Routers B, C, and D have no access to the Internet.
*The link to the ISP is not advertised by the routing protocol process.

18



Refer to the exhibit. A ping between host A and host B is successful, but pings from host A to operational hosts on the
Internet fail. What is the reason for this problem?
The FastEthernet interface of R1 is disabled.
*One of the default routes is configured incorrectly.
A routing protocol is not configured on both routers.
The default gateway has not been configured on host A.
19

Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip
rip command. What can be determined from the output of this command?
The router is broadcasting RIP updates.
The router will be unable to ping 192.168.1.2.
The router is directly connected to network 172.16.1.0 /24.
*The router has two interfaces that participate in the RIP process.

20
A router boots and enters setup mode. What is the reason for this?
The IOS image is corrupt.
Cisco IOS is missing from flash memory.
*The configuration file is missing from NVRAM.
The POST process has detected hardware failure.

21

Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose three.)

The route to network 172.16.0.0 has an AD of 156160.
Network 192.168.0.16 can best be reached using FastEthernet0/0.
*The AD of EIGRP routes has been manually changed to a value other than the default value.
*Router1 is running both the EIGRP and OSPF routing process. Network 172.17.0.0 can only be reached using a default route. *No default route has been configured.
22

A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will
prevent RIP updates from being sent to Router A?
A(config)# router rip
A(config-router)# passive-interface S0/0
B(config)# router rip
B(config-router)# network 192.168.25.48
B(config-router)# network 192.168.25.64
A(config)# router rip
A(config-router)# no network 192.168.25.32
*B(config)# router rip B(config-router)# passive-interface S0/0 A(config)# no router rip

23

Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the newly detected device can
be determined from the output? (Choose two.)
*ABCD is a router that is connected to R1.
ABCD is a non-CISCO device that is connected to R1.
*The device is connected at the Serial0/0/1 interface of R1.
R1 is connected at the S0/0/1 interface of device ABCD.
ABCD does not support switching capability.




24
Which statement is true about the metrics used by routing protocols?
*A metric is a value used by a particular routing protocol to compare paths to remote networks. A common metric is used by all routing protocols.
The metric with the highest value is installed in the routing table.
The router may use only one parameter at a time to calculate the metric.
25
Refer to the exhibit. What action will R2 take for a packet that is destined for 192.168.2.0?
It will drop the packet.
It will forward the packet via the S0/0/0 interface.
It will forward the packet via the Fa0/0 interface.
*It will forward the packet to R1.

26
Which two router component and operation pair are correctly described? (Choose two.)
DRAM - loads the bootstrap
RAM - stores the operating system
Flash - executes diagnostics at bootup
*NVRAM - stores the configuration file
ROM - stores the backup configuration file
*POST - runs diagnostics on hardware modules

27
Which two statements are true about the EIGRP successor route? (Choose two.)
It is saved in the topology table for use if the primary route fails.
*It may be backed up by a feasible successor route. *It is used by EIGRP to forward traffic to the destination.
It is flagged as active in the routing table.
After the discovery process has occurred, the successor route is stored in the neighbor table.
28

Refer to the exhibit. Which two facts can be derived from this output? (Choose two.)
*Three network devices are directly connected to Router2. *The serial interface between Router2 and Router3 is up.
Router1 and Router3 are directly connected.
Six devices are up and running on the network.
Layer 3 functionality between routers is configured properly.


Ilustrasi gambarnya :


29
In a lab test environment, a router has learned about network 172.16.1.0 through four different dynamic routing processes.
Which route will be used to reach this network?
*D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0
O 172.16.1.0/24 [110/1012] via 192.168.200.1, 00:00:22, Serial0/0/0
R 172.16.1.0/24 [120/1] via 192.168.200.1, 00:00:17, Serial0/0/0
I 172.16.1.0/24 [100/1192] via 192.168.200.1, 00:00:09, Serial0/0/0

30
Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a
router? (Choose three.)
*The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
*The router maintains the same source and destination IP. *The router changes the source physical address to the physical address of the exit interface. The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.
31

Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping
192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.

What is the reason for the ping failure?
The serial interface between two routers is down.
R2 is not forwarding the routing updates.
*The 192.168.4.0 network is not included in the RIP configuration of R2. RIPv1 needs to be configured.
32

Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?
The two routers are connected on a multiaccess network.
*The hello and dead intervals are different on the two routers. They have different OSPF router IDs.
They have different process IDs.
33

Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP
routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an
EIGRP neighbor adjacency.


What action should be taken to solve this problem?
Enable the serial interfaces of both routers.
Configure EIGRP to send periodic updates.
Configure the same hello interval between the routers.
*Configure both routers with the same EIGRP process ID.
34

Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the
problem? (Choose two.)
Set a lower priority on R2.
*Configure the routers in the same area.
Set a lower cost on R2 compared to R1.
Add a backup designated router to the network.
*Match the hello and dead timers on both routers.
35

Refer to the exhibit. All routers are properly configured to use the EIGRP routing protocol with default settings, and the
network is fully converged. Which statement correctly describes the path that the traffic will use from the 10.1.1.0/24
network to the 10.1.2.0/24 network?
It will use the A-D path only.
It will use the path A-D, and the paths A-C-D and A-B-D will be retained as the backup paths.
It will use all the paths equally in a round-robin fashion.
*The traffic will be load-balanced between A-B-D and A-C-D.
36

Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?
Router1
Router2
Router3
*Router4

37

Refer to the exhibit. The hosts that are connected to R2 are unable to ping the hosts that are connected to R1. How can this
problem be resolved?
Configure the router ID on both routers.
*Configure the R2 router interfaces for area 0.
Configure a loopback interface on both routers.
Configure the proper subnet masks on the router interfaces.

38

Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers are
displayed. All routers are operational and pings are not blocked on this network.

Which ping will fail?
from R1 to 172.16.1.1
from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1

39

Refer to the exhibit. Router R2 is configured properly and all interfaces are functional. Router R1 has been installed
recently. Host A is unable to ping host B.

Which procedure can resolve this problem?
Configure a static route on R1 using the IP address of the serial interface on R1.
Configure a default route on R1 with the exit interface Fa0/0 on R1.
*Configure a static route on R1 using the IP address of S0/0/0 on R2.
Configure a default route on R1 using the IP address of Fa0/0 on R2.

40

Refer to the exhibit. To implement the RIPv2 protocol, the network administrator runs the commands as displayed. However,
the show ip protocol command fails to display any output. How can the administrator solve the problem that is indicated by
the lack of output from this command?
Include the default-information originate command.
Include the no auto-summary command.
*Specify the network for which RIP routing has to be enabled.
Implement RIPv2 authentication in the network.

41

Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of the show ip rip database
command. However, upon running the show ip route command, the network administrator sees that the router has installed a
different route to the 192.168.6.0 network learned via EIGRP. What could be the reason for the missing RIP route?
*Compared to RIP, EIGRP has a lower administrative distance.
Compared to EIGRP, RIP has a higher metric value for the route.
Compared to RIP, the EIGRP route has fewer hops.
Compared to RIP, EIGRP has a faster update timer.
42

Refer to the exhibit. A network administrator has configured R1 as shown, and all interfaces are functioning correctly. A
ping from R1 to 172.16.1.1 fails. What could be the cause of this problem?
The serial interface on R1 is configured incorrectly.
*The default route is configured incorrectly.
The default-information originate command must be issued on R1.
Autosummarization must be disabled on R1.

43

Refer to the exhibit. A network administrator wants to reduce the size of the routing table of R1. Which partial routing
table entry in R1 represents the route summary for R2, without including any additional subnets?
10.0.0.0/16 is subnetted, 1 subnets

D 10.5.0.0[90/205891] via 192.168.1.2, S0/0/0
10.0.0.0/24 is subnetted, 4 subnets
D 10.5.0.0[90/205198] via 192.168.1.2, S0/0/0
*10.0.0.0/22 is subnetted, 1 subnets D 10.5.0.0[90/205901] via 192.168.1.2, S0/0/0
10.0.0.0/8 is subnetted, 4 subnets
D 10.5.0.0[90/205001] via 192.168.1.2, S0/0/0

44

Which two statements are true for link-state routing protocols? (Choose two.)
*Routers that run a link-state protocol can establish a complete topology of the network. Routers in a multipoint network that run a link-state protocol can exchange routing tables.
Routers use only hop count for routing decisions.
*The shortest path first algorithm is used. Split horizon is used to avoid routing loops.

45



Refer to the exhibit. Which two components are required to complete the configuration? (Choose two.)
a crossover cable
a DCE device
*a DTE device
a modem
*a V.35 cable


46

Refer to the exhibit. The output of the show ip route command for router R1 is displayed. What action will the router take
for a packet that is destined for 192.168.1.5?
*It will drop the packet.
It will forward the packet to interface Serial0/0/0.
It will determine the route for the packet through a routing protocol.
It will forward the packet to the default gateway.

47

Refer to the exhibit. A network administrator has run the show interface command. The output of this command is
displayed. What is the first step that is required to make this interface operational?
Switch the cable with a known working cable.
*Issue the no shutdown command on the interface. Configure the interface as a loopback interface.
Set the encapsulation for the interface.

48
What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)
The routers must elect a designated router.
*The routers must agree on the network type. *The routers must use the same dead interval.
The routers must exchange link state requests.
The routers must exchange database description packets.

49

Refer to the exhibit. All interfaces are addressed and functioning correctly. The network administrator runs the tracert
command on host A. Which two facts could be responsible for the output of this command? (Choose two.)
The gateway for Host A is missing or improperly configured.
The gateway for Host B is missing or improperly configured.
The entry for 192.168.1.0/24 is missing from the routing table of R1.
*The entry for 192.168.1.0/24 is missing from the routing table of R2. *The entry for 192.168.2.0/24 is missing from the routing table of R1. The entry for 192.168.2.0/24 is missing from the routing table of R2.

50

Refer to the exhibit. How many routes are ultimate routes?
*3
4
5
7

51



Refer to the exhibit. Which summarization should R1 use to advertise its networks to R2?
192.168.1.0/24
192.168.0.0/24
*192.168.0.0/22
192.168.1.0/22

52
How does route poisoning prevent routing loops?
New routing updates are ignored until the network has converged.
*Failed routes are advertised with a metric of infinity. A route is marked as unavailable when its Time to Live is exceeded.
The unreachable route is cleared from the routing table after the invalid timer expires.

53
What are two functions of a router? (Choose two.)
*It forwards data packets toward their destination. It forwards the packet to the destination if the TTL value is 0.

It changes the destination IP address of data packets before forwarding them to an exit interface.
It determines the best path based on the destination MAC address.
*It acts as an intersection between multiple IP networks.
54
Which two components are used to determine the router ID in the configuration of the OSPF routing process? (Choose two.)
the IP address of the first FastEthernet interface
the highest IP address of any logical interface
*the highest IP address of any physical interface the default gateway IP address
*the priority value of 1 on any physical interface

55



Refer to the exhibit. R2 is configured correctly. The network administrator has configured R1 as shown. Which two facts
are true about the forwarding of route information by R1? (Choose two.)
*R1 will forward the route information for subnet 192.168.100.0/30. *R1 will not forward route information for subnet 192.168.100.4/30. R1 will forward the route information with an administrative distance set to 50.
R1 will forward the summarized route information for network 192.168.100.0/24.
R1 will forward route information for subnet 10.10.10.0/30 out the serial interface.
56

Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)
*All routes are stable. Each route has one feasible successor.
The serial interface between the two routers is down.
The administrative distance of EIGRP has been set to 50.
*The show ip eigrp topology command has been run on R1.
57
A router has learned two equal cost paths to a remote network via the EIGRP and RIP protocols. Both protocols are using
their default configurations. Which path to the remote network will be installed in the routing table?
*the path learned via EIGRP the path learned via RIP
the path with the highest metric value
both paths with load balancing

58

Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All
devices are properly configured and the destination network is advertised by both protocols.

Which path will be used to transmit the data packets from PC1 to PC2?
*The packets will travel via R2-R1.
The packets will travel via R2-R3.
The traffic will be load-balanced between two paths via R2-R1 and via R2-R3.
The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.

59
Which statement is true about the RIPv1 protocol?
It is a link-state routing protocol.
*It excludes subnet information from the routing updates. It uses the DUAL algorithm to insert backup routes into the topology table.
It uses classless routing as the default method on the router.


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1. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?
ans:
The link to the ISP is not advertised by the routing protocol process.

2. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip rip command. What can be determined from the output of this command?
ans:
The router will be unable to ping 192.168.1.2.

3. Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?
ans:
The hello and dead intervals are different on the two routers.

4. Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency?
ans:
Configure both routers with the same EIGRP process ID.

5. Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols.
Which path will be used to transmit the data packets from PC1 to PC2?
ans:
The packets will travel via R2-R1.

6. Refer to the exhibit. What is the meaning of the highlighted value 2?
ans:
It is the number of hops between R2 and the 192.168.8.0/24 network.

7. What is the function of the OSPF LSR packet?
ans:
It is used by the receiving routers to request more information about any entry in the DBD.

8. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)

The router modifies the TTL field, decrementing it by one.
The router maintains the same source and destination IP.
The router changes the source physical address to the physical address of the exit interface.

9. Refer to the exhibit. The routers are properly configured using a dynamic routing protocol with default settings, and the network is fully converged. Router A is forwarding data to router E. Which statement is true about the routing path?

If the network uses the RIP protocol, router A will determine that all paths have equal cost.

10. Refer to the exhibit. A network administrator has run the show interface command. The output of this command is displayed. What is the first step that is required to make this interface operational?

Issue the no shutdown command on the interface.

11. Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.
What is the reason for the ping failure?

The 192.168.4.0 network is not included in the RIP configuration of R2.

12. Refer to the exhibit. R2 is configured correctly. The network administrator has configured R1 as shown. Which two facts are true about the forwarding of route information by R1? (Choose two.)
R1 will forward the route information for subnet 192.168.100.0/30.
R1 will forward the route information with an administrative distance set to 50.

13. Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers are displayed. All routers are operational and pings are not blocked on this network. Which ping will fail?
from R1 to 192.168.3.1

14. Refer to the exhibit. A network administrator has configured R1 as shown, and all interfaces are functioning correctly. A ping from R1 to 172.16.1.1 fails. What could be the cause of this problem?
The default route is configured incorrectly.

15. Which two router component and operation pair are correctly described? (Choose two.)
NVRAM – stores the configuration file
POST – runs diagnostics on hardware modules

16. A network administrator uses the RIP routing protocol to implement routing within an autonomous system. What are two characteristics of this protocol? (Choose two.):
It uses the Bellman-Ford algorithm to determine the best path.
It periodically sends complete routing tables to all connected devices.

17. Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?
-The Fa0/1 interfaces of the two routers are configured for different subnets.

18. Refer to the exhibit. All interfaces are addressed and functioning correctly. The network administrator runs the tracert command on host A. Which two facts could be responsible for the output of this command? (Choose two.)

The entry for 192.168.2.0/24 is missing from the routing table of R1.
The entry for 192.168.2.0/24 is missing from the routing table of R2.

19. What are two functions of a router? (Choose two.)

It forwards data packets toward their destination.
It acts as an intersection between multiple IP networks.

20. Which statement is true about the RIPv1 protocol?
It excludes subnet information from the routing updates.

21. Refer to the exhibit. To implement the RIPv2 protocol, the network administrator runs the commands as displayed. However, the show ip protocol command fails to display any output. How can the administrator solve the problem that is indicated by the lack of output from this command?
Specify the network for which RIP routing has to be enabled.

22. Refer to the exhibit. An administrator is adding a new subnet of 50 hosts to R3. Which subnet address should be used for the new subnet that provides enough addresses while wasting a minimum of addresses?
192.168.1.64/26

23. Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the problem? (Choose two.)
Configure the routers in the same area.
Match the hello and dead timers on both routers.

24. What two routing protocols use a hierarchal network topology? (Choose two.)
IS-IS
OSPF

25. Refer to the exhibit. Router R2 is configured properly and all interfaces are functional. Router R1 has been installed recently. Host A is unable to ping host B.
Which procedure can resolve this problem?
Configure a static route on R1 using the IP address of S0/0/0 on R2.

26. All routers in a network are configured in a single OSPF area with the same priority value. No loopback interface has been set on any of the routers. Which secondary value will the routers use to determine the router ID?
The highest IP address among the active interfaces will be used.

27. Which two statements are true for link-state routing protocols? (Choose two.)
Routers that run a link-state protocol can establish a complete topology of the network.
The shortest path first algorithm is used.

28. A router boots and enters setup mode. What is the reason for this?
The configuration file is missing from NVRAM.

29. Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the newly detected device can be determined from the output? (Choose two.)
ABCD is a router that is connected to R1.
The device is connected at the Serial0/0/1 interface of R1.

30. What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)
The routers must agree on the network type.
The routers must use the same dead interval.

31. Refer to the exhibit. A ping between host A and host B is successful, but pings from host A to operational hosts on the Internet fail. What is the reason for this problem?
One of the default routes is configured incorrectly.

32. What two routing protocols will produce a shortest path first tree? (Choose two.)
IS-IS
OSPF

33. Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose three.)
The AD of EIGRP routes has been manually changed to a value other than the default value.
Router1 is running both the EIGRP and OSPF routing process.
No default route has been configured.

34. Refer to the exhibit. What action will R2 take for a packet that is destined for 192.168.2.0?
It will forward the packet to R1.

35. Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of the show ip rip database command. However, upon running the show ip route command, the network administrator sees that the router has installed a different route to the 192.168.6.0 network learned via EIGRP. What could be the reason for the missing RIP route?
Compared to RIP, EIGRP has a lower administrative distance.

36. Which two components are used to determine the router ID in the configuration of the OSPF routing process? (Choose two.)
ans:
the highest IP address of any logical interface
the highest IP address of any physical interface

37. Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode?
ans:
Cisco789

38. Which routing protocol maintains a topology table separate from the routing table?
ans:
EIGRP

39. Refer to the exhibit. Which summarization should R1 use to advertise its networks to R2?
ans:
192.168.0.0/22

40. Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each other. What can be the cause of this problem?
ans:
RIPv1 does not support discontiguous networks.

41. Refer to the exhibit. All routers are properly configured to use the EIGRP routing protocol with default settings, and the network is fully converged. Which statement correctly describes the path that the traffic will use from the 10.1.1.0/24 network to the 10.1.2.0/24 network?
ans:
The traffic will be load-balanced between A-B-D and A-C-D.

42. A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
ans:
B(config)# router rip
B(config-router)# passive-interface S0/0

43. Which two statements are correct about the split horizon with poison reverse method of routing loop prevention? (Choose two.)
ans:
It assigns a value that represents an infinite metric to the poisoned route.
It sends back the poisoned route update to the same interface from where it was received.

44. Refer to the exhibit. The 10.4.0.0 network fails. What mechanism prevents R2 from receiving false update information regarding the 10.4.0.0 network?
ans:
split horizon

45. Refer to the exhibit. How many routes are ultimate routes?
ans:
5

46. Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)
ans:
All routes are stable.
The show ip eigrp topology command has been run on R1.

47. A router has learned two equal cost paths to a remote network via the EIGRP and RIP protocols. Both protocols are using their default configurations. Which path to the remote network will be installed in the routing table?
ans:
the path learned via EIGRP

48. Which two statements are true about the EIGRP successor route? (Choose two.)
ans:
It may be backed up by a feasible successor route.
It is used by EIGRP to forward traffic to the destination.

49. Refer to the exhibit. The output of the show ip route command for router R1 is displayed. What action will the router take for a packet that is destined for 192.168.1.5?
ans:
It will forward the packet to the default gateway.

50. Refer to the exhibit. The hosts that are connected to R2 are unable to ping the hosts that are connected to R1. How can this problem be resolved?
ans:
Configure the R2 router interfaces for area 0.

51. In a lab test environment, a router has learned about network 172.16.1.0 through four different dynamic routing processes. Which route will be used to reach this network?
ans:
D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0

52. Refer to the exhibit. Which two facts can be derived from this output? (Choose two.)
ans:
Three network devices are directly connected to Router2.
The serial interface between Router2 and Router3 is up.

53. How does route poisoning prevent routing loops?
ans:
Failed routes are advertised with a metric of infinity.

54. Refer to the exhibit. A network administrator wants to reduce the size of the routing table of R1. Which partial routing table entry in R1 represents the route summary for R2, without including any additional subnets?
ans:
10.0.0.0/22 is subnetted, 1 subnets
D 10.5.0.0[90/205901] via 192.168.1.2, S0/0/0

55. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
ans:
10.0.0.0/8
192.168.2.0/24

56. Refer to the exhibit. Although R2 is configured correctly, host A is unable to access the Internet. What are two static routes that can be configured on R1, either of which would enable Internet connectivity for host A? (Choose two.)
ans:
ip route 0.0.0.0 0.0.0.0 Fa0/1
ip route 0.0.0.0 0.0.0.0 10.1.1.2

57. Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?
ans:
Router4

58. Which statement is true about the metrics used by routing protocols?
ans:
A metric is a value used by a particular routing protocol to compare paths to remote networks.

59. Refer to the exhibit. Which two components are required to complete the configuration? (Choose two.)
ans:
a DTE device
a V.35 cable

CCNA1 Final v1(Lastest in Jun 2009)

www.ccna4u.net || www.ccna4u.info || www.ccna4u.org || www.9tut.info

2.
Which three IPv4 addresses represent valid network addresses for a subnet? (Choose three.)

(true answer)=>192.168.9.64/28

192.168.9.146/28

(true answer)=>192.168.9.96/28

192.168.9.129/26

192.168.9.51/26

(true answer)=>192.168.9.64/26



3

Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)

(true answer)=>Four collision domains are present.

One logical network is represented.

(true answer)=>Two broadcast domains are present.

Three networks are needed.

Three logical address ranges are required.




4



Refer to the exhibit. Which logical topology describes the exhibited network?

star

(true answer)=>ring

point-to-point

multi-access



5


Refer to the exhibit. At which OSI layer is serial interface 0/0/1 experiencing problems?

(true answer)=>Layer 1

Layer 2

Layer 3

Layer 4



6


Refer to the exhibit. Which two statements describe the information that is represented in the header? (Choose two.)

This is a server response.

The UDP protocol is being used.

(true answer)=>The destination port indicates a Telnet session.

(true answer)=>The return segment will contain a source port of 23.

The next session originated from the client of this session will use the source port number 13358.



7


Refer to the exhibit. Host B was powered off. What change will occur in the MAC table of the switch?

The table will remain unaffected.

(true answer)=>The switch will remove the MAC address at Fa0/19.

The switch will retain the MAC address until host B is powered on again.

The switch will rebuild the MAC table by assigning the FFFF.FFFF.FFFF address to port Fa0/19.



8
What information is contained in the header of Layer 3 to help data delivery?

(true answer)=>port number

device physical address

destination host logical address

virtual connection identifier



9


Refer to the exhibit. On the basis of the provided configuration, which statement is true?

(true answer)=>The IP address of host A is properly assigned to the local NIC.

Host A can send packets to any host on the local network only.

Host A can send packets to any host on the local and remote network.

Host A can ping successfully the default gateway address of 192.168.1.1.



10
As network administrator, what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?

255.255.0.0

255.255.248.0

255.255.252.0

(true answer)=>255.255.254.0

255.255.255.0

255.255.255.128



11


Refer to the exhibit. The network administrator remotely accesses the CLI of RouterB from PC1 using a secure connection. Which statement is true about this connection?

The Telnet server process is running on PC1.

Only the exchange of the Telnet username and password is encrypted.

The GET request is sent to RouterA to retrieve data.

(true answer)=>The SSH service is used to connect PC1 to RouterB.



12
A network administrator wants to restrict access to the router privileged EXEC mode. Which password should the administrator use?

(true answer)=>enable

aux

console

VTY



13


Refer to the exhibit. Which option correctly describes the purpose for the IP address that is assigned to VLAN 100?

provides remote switch management

(true answer)=>identifies the subnet for hosts in VLAN 100

serves as default gateway to hosts in VLAN 100

creates a routing table entry for packets to network 192.168.0.0



14
Which type of media is immune to EMI and RFI? (Choose two.)

10 Base-T

10 Base-2

10 Base-5

(true answer)=>100 Base-FX

100 Base TX

(true answer)=>1000 Base LX



15
Which device should be used for routing a packet to a remote network?

access switch

DHCP server

hub

(true answer)=>router


16


Refer to the exhibit. To create the initial configuration, a network technician connected host A to the router using the connection that is shown. Which statement is true about this connection?

It terminates at the Ethernet port of the router.

(true answer)=>It provides out-of-band console access.

It terminates at the serial interface of the router.

It requires a Telnet client on host A to access the router.



17
Which three IPv4 addresses represent a broadcast for a subnet? (Choose three.)

(true answer)=>172.16.4.63 /26

172.16.4.129 /26

(true answer)=>172.16.4.191 /26

172.16.4.51 /27

(true answer)=>172.16.4.95 /27

172.16.4.221 /27



18


Refer to the exhibit. On the basis of the IP configuration that is shown, what is the reason that Host A and Host B are unable to communicate outside the local network?

Host A was assigned a network address.

Host B was assigned a multicast address.

Host A and Host B belong to different networks.

(true answer)=>The gateway address was assigned a broadcast address.



19
Because of a security violation, the router password must be changed. What information can be learned from these configuration entries? (Choose two.)

Router(config)# line vty 0 4
Router(config-line)# password arj15
Router(config-line)# login

This configuration allows users to connect by using a modem.

Users must specify which line, 0 or 4, they wish to connect to when making a connection.

(true answer)=>This configuration allows users to connect to the router via the use of the telnet command.

(true answer)=>This configuration allows five users to make simultaneous connections to this router.
www.true answer


The configured password is automatically encrypted on the router.


20


Refer to the exhibit. Which statement is true about e-mail transmission between computer A and the server?

(true answer)=>The server will use HTTP to push messages to computer A.

Computer A will connect to the server and retrieve inbound messages by using POP.

The e-mail client on computer A uses SMTP to pull inbound messages from the server and push outbound messages to the server.

A connection is established from computer A to the server on port 21 and the client software uses FTP to transmit messages as discreet files.



21
Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?

application layer

presentation layer

session layer

(true answer)=>transport layer



22


Refer to the exhibit. The network administrator wants to remotely access the CLI of the router from PC1 using modem 1. Which port of the router should be connected to modem 2 to enable this access?

console

Ethernet

(true answer)=>auxiliary

serial



23
In a Cisco IOS device, where is the startup-configuration file stored?

Flash

(true answer)=>NVRAM

RAM

ROM



24
Which statement is true about the running configuration file in a Cisco IOS device?

(true answer)=>It affects the operation of the device immediately when modified.

It is stored in NVRAM.

It should be deleted using the erase running-config command.

It is automatically saved when the router reboots.



25


Refer to the exhibit. What is the correct destination socket number for a web page request from Host A to the web server?

00-08-a3-b6-ce-46

(true answer)=>198.133.219.25:80

http://www.cisco.com

C 198.133.219.0/24 is directly connected, FastEthernet0/0



26
A host is transmitting a video over the network. How does the transport layer allow this host to use multiple applications to transmit other data at the same time as the video transmission?

It uses error control mechanisms.

(true answer)=>It uses a connectionless protocol only for multiple simultaneous transmissions.

It uses multiple Layer 2 source addresses.

It uses multiple port numbers.



27


Refer to the exhibit. A router, the table of which is shown, receives a packet that is destined for 192.168.9.4. How will the router treat the packet?

It will drop the packet.

It will forward the packet via FastEthernet 0/1.

(true answer)=>It will forward the packet to the next hop address.

It will forward the packet to 172.16.2.0



28


Refer to the exhibit. The host was disconnected from switch 2 and connected to switch 1. Which combination of IP address, subnet mask, and default gateway should be assigned to this host to allow it to function in the network?

IP address: 10.10.9.37 Subnet mask: 255.255.255.240 Default gateway: 10.10.9.35

(true answer)=>IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35

IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35

IP address: 10.10.9.32 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35

IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 196.1.105.6

IP address: 10.10.9.63 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35



29
A user types the enable command. What task can be performed at the privileged EXEC mode?

Configure the device.

Configure individual interfaces.

Configure individual terminal lines.

(true answer)=>Issue show and debug commands.



30
What are three characteristics of CSMA/CD? (Choose three.)

(true answer)=>It monitors the media for presence of a data signal.

(true answer)=>After detecting a collision, hosts can resume transmission after a random timer has expired.

(true answer)=>A jam signal is used to ensure that all hosts are aware that a collision has occurred.

Devices can be configured with a higher transmission priority.

Data is transmitted only when the data signal is present.

It uses a token system to avoid collisions.


31
Which three statements characterize the transport layer protocols? (Choose three.)

(true answer)=>TCP and UDP port numbers are used by application layer protocols.

TCP uses port numbers to provide reliable transportation of IP packets.

UDP uses windowing and acknowledgments for reliable transfer of data.

(true answer)=>TCP uses windowing and sequencing to provide reliable transfer of data.

TCP is a connection-oriented protocol. UDP is a connectionless protocol.



32


Refer to the exhibit. The headers added at each layer are shown. Which layer adds the destination and source process numbers to ensure that data is delivered to the correct application?

physical layer

data link layer

network layer

(true answer)=>transport layer



33


Refer to the exhibit. In a network, Hosts A and B are exchanging segments at the transport layer. Which two statements are true about this exchange? (Choose two.)

Host A is transferring files to host B using FTP.

(true answer)=>Host A will send the next segment containing data for this session starting with byte number 11.

The segment from the destination host indicates that 11 bytes have been received successfully.

(true answer)=>Host A is initiating a Telnet session to host B.

Host B can send the next segment of the data starting with byte number 2.



34
During the encapsulation process of the TCP/IP model, which layer will attach the IP header to the data?

application

transport

(true answer)=>internet

network access



35


Refer to the exhibit. The network containing router B is experiencing problems. A network associate has isolated the issue in this network to router B. What action can be preformed to correct the network issue?

(true answer)=>issue the clock rate command on interface Serial 0/0/0

issue the description command on interface Serial 0/0/1

issue the ip address command on interface FastEthernet 0/0

issue the no shutdown command on interface FastEthernet 0/1



36
During the encapsulation process, what identifiers are added at the transport layer?

source and destination IP addresses

source and destination MAC addresses

source and destination port numbers

source and destination channel identifiers



37


Refer to the exhibit. A network technician wants to connect host A to the console of a Cisco switch to initialize the configuration. What type of cable is required for this connection?

straight-through cable

crossover cable

(true answer)=>rollover cable

serial cable



38
How does the transport layer allow a host to maintain multiple, simultaneous communication streams across different applications?

It uses error control mechanisms.

(true answer)=>It uses a connectionless protocol only for multiple simultaneous transmissions.

It uses multiple Layer 2 source addresses.

It uses multiple ports.



39
While configuring a router, a network technician wants to name the router. Which prompt should the technician see when entering the hostname command?

Router>

Router#

(true answer)=>Router(config)#

Router(config-line)#



40


Refer to the exhibit. The NAT functionality of the router is enabled to provide Internet access to the PC. However, the PC is still unable to access the Internet. Which IP address should be changed to 209.165.201.1 to enable the PC to access the Internet?

192.168.1.191

192.168.1.101

192.168.1.1

(true answer)=>192.168.1.254



41
Which option would be a valid router hostname according to Cisco naming convention guidelines?

Rtr1_Bldg201

(true answer)=>Building_201

Router 1

1st_Floor_Router_409_West_State_Street



42
An administrator has made changes to a device. The changes did not have the desired effect. What can the administrator do to restore the configuration saved in NVRAM?

Issue the erase flash command.

(true answer)=>Issue the reload command and respond no to the prompt that follows.

Issue the erase start-up config command.

Issue the copy running-config start-up config command.



43


Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?

Connection 1 - rollover cable Connection 2 - straight-through cable Connection 3 - crossover cable

Connection 1 - straight-through cable Connection 2 - crossover cable Connection 3 - rollover cable

Connection 1 - crossover cable Connection 2 - rollover cable Connection 3 - straight-through cable

Connection 1 - crossover cable Connection 2 - straight-through cable Connection 3 - rollover cable

(true answer)=>Connection 1 - straight-through cable Connection 2 - straight-through cable Connection 3 - straight-through cable



44


Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable this access from host A?

Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130

Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2

(true answer)=>Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1

Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130



45


Refer to the exhibit. Cable 1 and cable 2 have the ends wired for specific physical layer requirements. The table lists each segment by number and the cable which has been installed by the network technician between the network components on that segment. From the data given, which segments have the correct cable installed? (Choose three.)

(true answer)=>segment1

segment2

(true answer)=>segment3

(true answer)=>segment4

segment5


46


Refer to the exhibit. Which logical topology describes the exhibited network?

star

(true answer)=>ring

point-to-point

multi-access



47


Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network device or interface does the IP address 192.168.1.254 belong?

PC

switch

(true answer)=>router interface fa0/0

router interface fa0/1



48


Refer to the exhibit. The network administrator uses the netstat command to display the open, active, and running TCP connections on a networked host. The exhibit displays the output of this command. Which two facts can be determined from this output for accessing www.cisco.com? (Choose two.)

The source port indicates that the session is an http session.

The connection is not successful.

(true answer)=>The source port of the host is 3166.

(true answer)=>The destination port is 80.

The source port does not support communication with the destination port that is listed.

The source port indicates that a UDP session has been initiated.



49
The network administrator wants to configure the port number used by an application on a server to make it accessible by clients. Which range of port numbers would normally be assigned for this application?

0 to 255

(true answer)=>0 to 1023

1024 to 49151

49152 to 65535



50


Refer to the exhibit. A user wants to view the current configuration. The output of the ipconfig/all command is displayed in the exhibit. What three facts can be determined from the output? (Choose three.)

The IP address is obtained from the DHCP server.

(true answer)=>This PC cannot communicate with other networks.

(true answer)=>The network can have 14 hosts.

The prefix of the computer address is /25.

The IP address is routable on the Internet.

The assigned address is a private address.



51


Refer to the exhibit. What is required on host A for a network technician to create the initial configuration on Router1?

an FTP client

a Telnet client

(true answer)=>a terminal emulation program

a web browser