31785040 ccna 2 final erouting final exam ccna exploration routing protocols and concepts version 4...

8/9/2019 31785040 Ccna 2 Final ERouting Final Exam CCNA Exploration Routing Protocols and Concepts Version 4 0

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Exam Viewer - ERouting Final Exam - CCNA Exploration: Routing Protocols and Concepts (Version 4.0)

Below you will find the assessment items as presented on the exam as well as the scoring rules associated with the

item.

Cisco Networking Academy content is copyrighted and the unauthorized posting, distribution or sharing of

this exam content is prohibited.

1 Using default settings, what is the next step in the router boot sequence after the IOS loads

from flash?

Perform the POST routine.

Search for a backup IOS in ROM.

Load the bootstrap program from ROM.

Load the running-config file from RAM.

Locate and load the startup-config file from NVRAM.

Observable Description MaxValue

1correctness of

response

2 points for Option 5

0 points for any other

option

2

This item references content from the following areas:

CCNA Exploration: Routing Protocols and Concepts

1.1.4 Router Boot-up Process

2 A network administrator is in charge of two separate networks that share a single building.What device will be required to connect the two networks and add a common connection to

the Internet that can be shared?

hub

router

access point

Ethernet switch

Observable DescriptionMax

Value

1correctness ofresponse

2 points for Option 20 points for any other

option

2

This item references content from the following areas:CCNA Exploration: Routing Protocols and Concepts

1.1.1 Routers are Computers

3 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


Value


Option 4 and Option 6 are correct.

1 point for each correct option.0 points if more options are

selected than required.

2


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1.1.2 Router CPU and Memory

4

Refer to the exhibit. All routers are properly configured with default configurations and are

running the OSPF routing protocol. The network is fully converged. A host on the192.168.3.0/24 network is communicating with a host on the 192.168.2.0/24 network.

Which path will be used to transmit the data?

The data will be transmitted via R3-R2.

The data will be transmitted via R3-R1-R2.

The traffic will be load-balanced between two paths one via R3-R2, and the other via

R3-R1-R2.

The data will be transmitted via R3-R2, and the other path via R3-R1-R2 will be retainedas the backup path.


Value

1correctness of

response


option

2



3.3.3 Load Balancing

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?

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.


Value

1correctness of

response


option

2


3.3.3 Load Balancing

6

Refer to the exhibit. How many routes are both level 1 and qualify for use as an ultimate

route?

1

2

3

4

5


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6


Value

1correctness of

response


option

2



8.1.3 Level 1 Routes

7 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


Value

1correctness of

response



option

2



5.5.2 Propagating the Default Route inRIPv1

8

Refer to the exhibit. The results of the show ip route command are displayed in the graphicfor Router R2. Which route will be selected for a packet with a destination address of

10.1.4.1?

route to 0.0.0.0/0

route to 10.1.0.0/22route to 10.1.0.0/23

route to 10.1.0.0/24


Value

1correctness of

response


0 points for any otheroption

2



2.5.2 Modifying Static Routes

9 Which statement is true regarding routing metrics?

All routing protocols use the same metrics.

EIGRP uses bandwidth as its only metric.

Routers compare metrics to determine the best route.

The larger metric generally represents the better path.


Value


4/53

1correctness of

response


option

2



3.3.1 Purpose of a Metric10 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 remotenetwork 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

Observable Description

Max

Value




2


9.1.8 Administrative Distance

11 You have been asked to explain converged networks to a trainee. How would you accurately

describe a converged network?A network is converged when all routers have formed an adjacency.

A network is converged immediately after a topology change has occurred.

A network is converged when all routers flush the unreachable networks from their

routing tables.A network is converged after all routers share the same information, calculate best paths,

and update their routing tables.


Value

1correctness of

response

2 points for Option 40 points for any otheroption

2



3.2.3 Distance Vector and Link State

12 Which three statements about routing protocols are true? (Choose three.)

EIGRP supports unequal cost load balancing.

RIP cannot be configured to allow classless routing.

OSPF elects designated routers on multiaccess links.

RIP does not advertise a route beyond a hop count of 15.

EIGRP uses broadcast traffic to establish adjacencies with its neighbors.

OSPF can convergence more quickly because it can find a feasible successor in its

topology table when a successor route goes down.


Value

1 correctness of response

Option 1, Option 3, and Option 4are correct.1 point for each correct option.

0 points if more options are

3


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3.2.2 IGP and EGP

13

Refer to the exhibit. What are two of the routes added to the routing table of R1? (Choose

two.)

R 172.16.1.0/24 [120/1] via 192.168.3.0, 00:00:24, Serial0/0/0

R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1

R 192.168.9.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0

R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0

R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0


1correctness of

response


1 point for each correct option.

0 points if more options areselected than required.

2



5.3.3 Verifying RIP: debug ip rip14

Refer to the exhibit. A technician has configured the interfaces on the Router, but upon

inspection discovers that interface FastEthernet0/1 is not functioning. Which action will mostlikely correct the problem with FastEthernet0/1?

A clock rate should be added to the interface configuration.

The subnet mask should be added to the interface configuration.

An interface description needs to be added to the interface configuration.

The no shutdown command needs to be added to the interface configuration.


Value




2


1.2.2 Basic Router Configuration

15

Refer to the exhibit. A device is required to complete the connection between router R1 andthe WAN. Which two devices can be used for this? (Choose two.)

a CSU/DSU device

a modem

an Ethernet switch

a huba bridge


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Value

1correctness of

response




2


2.2.5 Examining Router Interfaces

16 Which port should a terminal emulator be connected to in order to access a router without

network connectivity?

T1

serial

console

FastEthernet


Value

1correctness of

response


option

2



1.1.5 Router Interfaces

17

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.


Value





2



2.3.4 Using CDP for Network

Discovery

18 Which component is typically used to connect the WIC interface of a router to a CSU/DSU?

V.35 cable

RJ-45 adapter

crossover cable

straight-through cable


1 correctness of

response



2


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option




19

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 forthe 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.





Value

1correctness of

response

Option 4 and Option 5 are correct.1 point for each correct option.



2



2.7.2 Troubleshooting a Missing Route

20

Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2. What

are the two results of this command? (Choose two.)

A static route will be updated in the routing table.

The traffic from the Internet will be directed to R2.

The traffic from the source network 172.16.0.0/22 will be blocked.The route will be specified as the default route for all networks not defined in the routing

table.

All the broadcasts will be forwarded via the S0/0/0 interface of R2.


Value





2



2.7.3 Solving the Missing Route

21

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


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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


Value

1 correctness ofresponse




2




22 In which situation would a default static route be recommended?

when connecting an edge router to the Internet

when variable length subnet masking is in effect

when there is more than one valid route for a destination network

when a destination network has a larger mask than any routes in the routing table


Value

1correctness of

response



option

2



2.6.2 Default Static Route

23

Refer to the exhibit. A ping from R1 to 10.1.1.2 is successful, but a ping from R1 to

192.168.2.0 fails. What is the cause of this problem?

There is no gateway of last resort at R1.

The serial interface between the two routers is down.

A default route is not configured on R1.

The static route for 192.168.2.0 is incorrectly configured.


Value




2



24

Refer to the exhibit. A static route was configured on router R1 to forward packets to theremote networks. During a network upgrade, the network administrator configured RIPv2 on

all routers in the network. What will router R1 do with a packet that is sourced from PC1 and

destined for PC3?The packet will be forwarded out the Serial0/0/0 interface via the static route.

The packet will be forwarded out the FastEthernet0/1 interface via the static route.


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The packet will be forwarded out the Serial0/0/0 interface via the route that is learnedthrough RIP.

The packet will be forwarded out the FastEthernet0/1 interface via the route that is learned

through RIP.


Value




2


2.4.4 Resolving to an Exit Interface

25

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


Value

1correctness of

response



option

2



6.3.1 Route Summarization

26

Refer to the exhibit. Routers 1 and 2 are directly connected over a serial link. Pings are failing

between the two routers. What change by the administrator will correct the problem?Set the encapsulation on both routers to PPP.

Decrease the bandwidth on Serial 0/1/0 on router 2 to 1544.

Change the cable that connects the routers to a crossover cable.

Change the IP address on Serial 0/1/0 on router 2 to 192.168.0.1/30.


Value

1correctness of

response


option

2




27

Refer to the exhibit. Which host has a combination of IP address and subnet mask on the same

network as Fa0/0 of Router1?host A

host B


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host C

host D


Value

1correctness of

response



option

2



1.2.1 Implementing Basic AddressingSchemes

28

Refer to the exhibit. What does the highlighted entry for network 172.30.0.0/16 indicate?

Automatic summarization is enabled on R1.

The routing table of R2 contains only classful networks.

R2 will reject this update.

The routing protocol that is configured on both routers is RIPv1.


Value

1correctness of

response


option

2



7.2.2 Auto-summary and RIPv2

29 Which subnetting scheme will accommodate a network of 10 LANs, each of which contains aminimum of 2000 hosts?

10.0.0.0/10

10.0.0.0/11

172.16.0.0/18

172.16.0.0/20


Value

1correctness of

response



option

2


6.1.1 Classful IP Addressing

30 How will a router that is configured with a classless routing protocol determine the subnet

mask that should be assigned to routes that are learned from neighboring classless routers?

The subnet mask that is included in the routing updates will be used.

The subnet mask of the interface that receives the update will be used.

The subnet mask that is specified in the networkcommand will be used.

The class of the network in the update will determine the subnet mask that is used.


Value


11/53

1correctness of

response


option

2



6.1.4 Classless Routing Protocol31

Refer to the exhibit. When troubleshooting a network, it is important to interpret the output

of various router commands. On the basis of the exhibit, which three statements are true?

(Choose three.)

The missing information for Blank 1 is the command show ip route.

The missing information for Blank 1 is the command debug ip route.

The missing information for Blank 2 is the number 100.


The missing information for Blank 3 is the letter R.

The missing information for Blank 3 is the letter C.


Value


Option 1, Option 4, and Option 6

are correct.1 point for each correct option.



3



3.5.1 Identifying Elements of the Routing

Table

32 Which statement correctly describes a feature of RIP?

RIP is a link-state routing protocol.

RIP uses only one metrichop count for path selection.

Advertised routes with hop counts greater than 10 are unreachable.

Messages are broadcast every 10 seconds.


Value

1correctness of

response



2


5.1.2 RIPv1 Characteristics and Message

Format

33

Refer to the exhibit. PC1 is unable to access the Internet. What is the cause of the problem?

An incorrect IP address is configured between the two routers.

No static route is configured on Router2.

A routing loop has occurred.

No routing protocol is configured on either of the two routers.


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Value

1correctness of

response



option

2



4.4.6 Split Horizon with Poison Reverse or RoutePoisoning

34 Which mechanism helps to avoid routing loops by advertising a metric of infinity?

route poisoning

split horizon

hold-down timer

triggered updates


Value




2


4.4.6 Split Horizon with Poison Reverse or Route

Poisoning

35

Refer to the exhibit. A packet enters Router1 with a destination IP of 172.16.28.121. Which

routing table entry will be used to forward this packet to the destination address?

172.16.0.0/16 [1/0] via 192.168.0.1

172.16.0.0/20 [1/0] via 192.168.0.9

172.16.16.0/20 [1/0] via 192.168.0.17

0.0.0.0/0 is directly connected, Serial0/0/1


Value




2


8.2.2 Longest Match: Level 1 Network

Routes

36

Refer to the exhibit. R1 and R2 are both configured with RIPv1. Beginning from global

configuration mode, what comand or commands will eliminate RIP updates on the Ethernet

segment of R2?

R2# configure terminalR2(config)# router rip

R2(config-router)# passive-interface FastEthernet0/0

R2# configure terminalR2(config)# passive-interface FastEthernet0/0

R2# passive-interface FastEthernet0/0

R2# configure terminal


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R2(config)# interface FastEthernet0/0R2(config-if)# passive-interface FastEthernet0/0


Value

1correctness of

response



option

2



5.3.4 Passive Interfaces

37

Refer to the exhibit. The routers in the exhibit are running the EIGRP routing protocol. What

statement is true regarding how packets will travel from the 172.16.1.0/16 network to the

192.168.200.0/24 network?The router chooses the first path that it learned and installs only that route in the routing

table.

The router chooses the path with the lowest administrative distance and installs only thatroute in the routing table.

The router chooses the highest routing ID based on the advertised network IP addresses

and installs only that route in the routing table.The router installs all the equal cost paths in the routing table but sends packets out only

one, holding the others in reserve in case the primary route goes down.

The router installs all the equal cost paths in the routing table and performs equal cost loadbalancing to send packets out multiple exit interfaces.


Value



option

2


1.4.2 Best Path and Metric38

Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces andare 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.


Value

1correctness of

response



2


9.2.2 Autonomous Systems and Process

IDs


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39

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 administrative distance of EIGRP has been set to 50.

The show ip eigrp topology command has been run on R1.


Value

1correctness of

response




2



9.5.2 Disabling Automatic

Summarization

40 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.


Value





2


9.4.1 DUAL Concepts

41

Refer to the exhibit. Which route will be removed from the routing table if manual EIGRPsummarization is disabled the Serial0/0/0 interface of R3?

0.0.0.0/0

172.16.0.0/16

172.16.1.0/24

172.16.3.0/30


Value




2



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9.2.6 Examining the Routing Table

42 When would the network administrator use the ip bandwidth-percent eigrp as-number

percentcommand?

when there is a low bandwidth connection

when the connection is on a shared medium

when the connection is serial instead of Ethernet

when the link is always busy


Value




2


9.5.5 Fine-tuning EIGRP

43 Which statement correctly describes a feasible successor in EIGRP?

It is a primary route that is stored in the routing table.

It is a backup route that is stored in the routing table.

It is a primary route that is stored in the topology table.

It is a backup route that is stored in the topology table.


Value



option

2


9.4.4 Topology Table: Successor and Feasible

Successor

44

Refer to the exhibit. A network administrator is trying to determine why router JAX has no

OSPF routes in its routing table. All routers are configured for OSPF area 0. From the JAX

router, the administrator is able to ping its connected interfaces and the Fa0/1 interface of theORL router but no other router interfaces. What is a logical step that the network administrator

should take to troubleshoot the problem?

Reboot the routers.

Change the OSPF process ID on all of the routers to 0.

Check to see if the cable is loose between ORL and JAX.

Check to see if CDP packets are passing between the routers.

Use show and debug commands to determine if hellos are propagating.


Value

1correctness of

response


option

2


10.1.6 Building the Link-State Packet


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45

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.


Value



option

2



11.2.3 The network Command

46 What is the function of the OSPF LSU packet?

used to confirm receipt of certain types of OSPF packets

used to establish and maintain adjacency with other OSPF routers

used to request more information about any entry in the BDR

used to announce new OSPF information and to reply to certain types of requests


Max

Value

1correctness of

response


option

2



11.1.3 OSPF Packet Types

47 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 routersuse 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.


Value



option

2


11.2.4 OSPF Router ID

48

Refer to the exhibit. A network administrator is troubleshooting the OSPF network. The

10.10.0.0/16 network is not showing up in the routing table of Router1. What is the probable

cause of this problem?


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The serial interface on Router2 is down.

The OSPF process is not running on Router2.

The OSPF process is configured incorrectly on Router1.

There is an incorrect wildcard mask statement for network 10.10.0.0/16 on Router2.


Value

1correctness of

response


option

2



11.2.5 Verifying OSPF


49

Refer to the exhibit. If the router loopback interfaces, FastEthernet interfaces, and OSPF

priorities are configured as shown, which router would win an OSPF DR election?

A

B

C

D


Value



option

2


11.4.2 DR/BDR Election Process

50

Refer to the exhibit. Two routers that are configured for area 0 are unable to establishneighbor adjacency. Which two configuration changes should be made to resolve this

problem? (Choose two.)

Both the routers should be configured for the same router ID.

The serial interface of both the routers must be configured in the same subnet.

Both the routers should be configured as designated routers.

Both the routers should be configured for the same process ID.

The network 10.1.1.0 0.0.0.3 area 0 command must be issued on both routers.


Value

1correctness of

response




2




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item.

Cisco Networking Academy content is copyrighted and the unauthorized posting, distribution or sharing ofthis exam content is prohibited.

1 Which of the following are primary functions of a router? (Choose two.)

packet switching

microsegmentation

domain name resolution

path selection

flow control


Value

1correctness of

response




2




2 A network administrator is in charge of two separate networks that share a single building. What device

will be required to connect the two networks and add a common connection to the Internet that can be

shared?

hub

router

access point

Ethernet switch




option

2



3 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.


Value

1

correctness of

response


0 points for any otheroption 2



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4

Refer to the exhibit. A network administrator adds this command to router R1: ip route 192.168.2.0

255.255.255.0 S0/0/0. What is the result of adding this command?

This route is automatically propagated throughout the network.The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.

A static route is established.

The traffic for all Class C networks is forwarded to 172.16.1.2.


Value

1correctness of

response



option

2



2.5.1 Configuring a Static Route with an ExitInterface

5 In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of

the RIP routing process. Which route will be installed in the routing table after the discovery of all fourpaths?

R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial0/1/0

R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial0/0/0

R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial0/0/1

R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial0/1/1


Value

1correctness of

response



option

2



5.5.2 Propagating the Default Route inRIPv1

6 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.


Value

1

correctness of

response


are correct.



3


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1.4.5 Switching Function

7

Refer to the exhibit. Router R1 receives a packet for destination 192.168.1.10. Which route will be

preferred for this packet?through the Fa0/0 interface

through the Fa0/1 interface

through the S0/0/0 interface

through the S0/0/1 interface


Value

1correctness of

response



option

2



8.2.1 Steps in the Route Lookup

Process

8

Refer to the exhibit. Which two routes are level 1 ultimate routes? (Choose two.)10.0.0.0

10.1.2.0

10.2.2.0

10.1.1.0

192.168.1.0

192.168.2.0


Value

1correctness of

response





2



8.2.1 Steps in the Route Lookup

Process9 Which routing protocol by default uses bandwidth and delay to calculate the metric of a route?

RIPv1

RIPv2

OSPF

EIGRP


Value




2


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3.3.2 Metrics and Routing Protocols

10 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.


Value

1correctness of

response


option

2



3.3.1 Purpose of a Metric

11

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 viaEIGRP. 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.


Value

1correctness of

response



option

2



3.4.1 Purpose of AdministrativeDistance

12

Refer to the exhibit. RIPv1 has been used as a routing protocol on the network. A new 172.16.2.0/24

network has been added on router R2 and configured under the RIP routing process. When will R1

converge?after 13 seconds

after 30 seconds

after 180 seconds

after R1 receives triggered updates from R2


Value

1

correctness of

response


0 points for any otheroption 2



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16

What can be determined from the output shown in the exhibit? (Choose two.)

Annapolis is a 2611 router that is connected to the S0/0 interface of the Montgomery router.All of the routers are connected to Montgomery through an Ethernet switch.

Montgomery has Layer 2 connectivity with Cumberland.

Layer 3 connectivity is operational for all of the devices listed in the Device ID column.

An administrator consoled into the Waldorf router can ping the Brant router.

Brant, Fisherman, and Potomac are directly connected to Montgomery.


Value

1correctness of

response




2



2.3.4 Using CDP for NetworkDiscovery

17

Refer to the exhibit. Which route in the routing table of R1 will be discarded by its neighboring router?

192.168.2.0

192.168.3.0

192.168.4.0

192.168.9.0

192.168.10.0

192.168.11.0


Value



option

2


5.1.2 RIPv1 Characteristics and MessageFormat

18

Refer to the exhibit. Based on the partial output in the exhibit, why can users establish a console

connection to this router without entering a password?

The login command was not entered on the console line.

The enable password should be an enable secret password.

No username and password combination has been configured.

Console connections cannot be configured to require users to provide passwords.


Value


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1correctness of

response


option

2



1.2.2 Basic Router Configuration19

Refer to the exhibit. An administrator is attempting to configure a router by copying and pasting the

commands that are shown in the exhibit. However, only one of the FastEthernet interfaces is coming

up. What is the problem?

Both interfaces are in the same IP subnet.

FastEthernet0/1 does not have a description.

There can be only one FastEthernet interface enabled on a router at one time.

The administrator did not exit to global configuration mode before configuring FastEthernet0/1.


Value



option

2



20

Refer to the exhibit. The network administrator has run the following command on R1.

R1(config)# ip route 192.168.2.0 255.255.255.0 172.16.1.2

What is the result of running this command?

Traffic for network 192.168.2.0 is forwarded to 172.16.1.2.

This route is automatically propagated throughout the entire network.Traffic for all networks is forwarded to 172.16.1.2.

The command invokes a dynamic routing protocol for 192.168.2.0.


Value

1correctness of

response



2




21

Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2. What are thetwo results of this command? (Choose two.)

A static route will be updated in the routing table.

The traffic from the Internet will be directed to R2.The traffic from the source network 172.16.0.0/22 will be blocked.

The route will be specified as the default route for all networks not defined in the routing table.


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All the broadcasts will be forwarded via the S0/0/0 interface of R2.


Value

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response




2




22

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.


Value



option

2


11.5.1 Redistributing an OSPF Default

Route

23 The command ip route 192.168.2.0 255.255.255.0 172.16.2.2 was entered into the router. After

network changes were made, the new next hop for the 192.168.2.0/24 network is 172.16.5.1. What

should an administrator do so that the router will use the new next hop to reach the 192.168.2.0network?

Enter the command clear ip route *.

Lower the administrative distance for the new path to ensure that it is used first.

Negate the original command and enter a new static route with the new next hop.

Nothing. The router will learn of the new next hop and automatically update the route table.


Value

1correctness of

response



option

2



2.5.2 Modifying Static Routes

24

Refer to the exhibit. On the basis of the show running-config output, which option correctly reflects

the routes that will be listed in the R2 routing table?


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1correctness of

response



option

2



2.5.1 Configuring a Static Route with an Exit

Interface


25

Refer to the exhibit. Routers 1 and 2 are directly connected over a serial link. Pings are failing betweenthe two routers. What change by the administrator will correct the problem?

Set the encapsulation on both routers to PPP.

Decrease the bandwidth on Serial 0/1/0 on router 2 to 1544.

Change the cable that connects the routers to a crossover cable.Change the IP address on Serial 0/1/0 on router 2 to 192.168.0.1/30.


Value

1correctness of

response



option

2




26

Refer to the exhibit. Which combination of network ID and subnet mask can be used to meet the 24

host requirement of the LAN that is attached to Router3?

192.168.0.0/27

192.168.0.64/26

192.168.0.192/26192.168.0.192/27


Value

1correctness of

response


option

2



6.2.2 VLSM and IP Addresses

27


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Refer to the exhibit. The networks that are connected to R1 have been summarized for R2 as

192.168.136.0/21. Which packet destination address will R2 forward to R1?

192.168.135.1

192.168.142.1

192.168.144.1

192.168.128.1


Value

1correctness of

response



2



6.3.2 Calculating Route Summarization

28 A network administrator has been asked to configure a network using a classful IP addressing scheme.

Which statement is true about the IP addressing that will be used?

Classful IP addresses can be used only when static routing is configured in the network.

Classful IP addresses allow the network/host boundary to occur at any bit in the 32-bit address.

The subnet mask for classful IP addresses can be determined by the value of the first octet of the IPaddress.

Classful IP addresses require the subnet mask to be included in the routing updates that are

propagated by the classful routing protocols.


Value

1correctness of

response



option

2



6.1.1 Classful IP Addressing29 Which range of IP addresses will be used by RIPv2, EIGRP, and OSPF routing protocols to send

routing advertisements?


Value




2


6.1.1 Classful IP Addressing

30 How will a router that is configured with a classless routing protocol determine the subnet mask that


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should be assigned to routes that are learned from neighboring classless routers?

The subnet mask that is included in the routing updates will be used.

The subnet mask of the interface that receives the update will be used.

The subnet mask that is specified in the networkcommand will be used.

The class of the network in the update will determine the subnet mask that is used.


Max

Value

1correctness of

response



option

2



6.1.4 Classless Routing Protocol

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.


Value

1correctness of

response



2



7.2.1 Enabling and Verifying RIPv232

Refer to the exhibit. When troubleshooting a network, it is important to interpret the output of various

router commands. On the basis of the exhibit, which three statements are true? (Choose three.)

The missing information for Blank 1 is the command show ip route.

The missing information for Blank 1 is the command debug ip route.



The missing information for Blank 3 is the letter R.

The missing information for Blank 3 is the letter C.


Value

1correctness of

response


are correct.



3



29/53

3.5.1 Identifying Elements of the RoutingTable

33

Refer to the exhibit. The network is using the RIPv2 routing protocol. If network 10.0.0.0 goes down,what mechanism will prevent Router1 from advertising false routing information back to Router2?

triggered updatespoison reverse

holddown timers

split horizon


Value

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response



option

2



4.4.5 Split Horizon Rule

34 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.


Value

1correctness of

response



option

2



4.4.6 Split Horizon with Poison Reverse or RoutePoisoning

35

Refer to the exhibit. R1 and R2 are both configured with RIPv1. Beginning from global configurationmode, what comand or commands will eliminate RIP updates on the Ethernet segment of R2?


R2(config)# router rip

R2(config-router)# passive-interface FastEthernet0/0

R2# configure terminalR2(config)# passive-interface FastEthernet0/0

R2# passive-interface FastEthernet0/0


R2(config)# interface FastEthernet0/0

R2(config-if)# passive-interface FastEthernet0/0


Value

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2



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5.3.4 Passive Interfaces

36

Refer to the exhibit. All routers are configured with RIPv2 active on all interfaces. Automaticsummarization is in effect. Why does the routing table on R3 include the 209.165.200.228/30 network

but not the 172.30.1.0/24 and 172.30.2.0/24 networks?CIDR is required to route supernets.

There is no default gateway configured.

The 172.30.0.0/16 subnets are discontiguous.

RIPv2 cannot route networks with variable subnets.


Value

1correctness of

response



option

2



7.2.2 Auto-summary and RIPv2

7.4.2 Common RIPv2 issues

37

Refer to the exhibit. The routers in the exhibit are running the EIGRP routing protocol. What statementis true regarding how packets will travel from the 172.16.1.0/16 network to the 192.168.200.0/24

network?

The router chooses the first path that it learned and installs only that route in the routing table.

The router chooses the path with the lowest administrative distance and installs only that route in

the routing table.

The router chooses the highest routing ID based on the advertised network IP addresses and installs

only that route in the routing table.The router installs all the equal cost paths in the routing table but sends packets out only one,

holding the others in reserve in case the primary route goes down.

The router installs all the equal cost paths in the routing table and performs equal cost loadbalancing to send packets out multiple exit interfaces.


Value

1correctness of

response



option

2



1.4.2 Best Path and Metric

38

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 administrative distance of EIGRP has been set to 50.The show ip eigrp topology command has been run on R1.


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Value

1correctness of

response




2



Summarization

39

Refer to the exhibit. Host A is having problems accessing server A. All routers have the same EIGRP

configuration as router RTR_A. What should be done so that host A can access server A?

Add the command no auto-summary on all routers.

Change the network statements to include a wildcard mask.

Adjust the EIGRP hello timers to account for the network delay.

Add the command eigrp log-neighbor-changes on all routers.


Value

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2




Summarization

40 When would the network administrator use the ip bandwidth-percent eigrp as-number percent

command?

when there is a low bandwidth connection

when the connection is on a shared medium

when the connection is serial instead of Ethernetwhen the link is always busy


Value

1correctness of

response



option

2



9.5.5 Fine-tuning EIGRP

41

Refer to the exhibit. What information can be determined from the displayed output?

EIGRP packets are waiting to be sent to the neighbors.

The adjacencies between the routers are yet to be established.

The IP address 192.168.10.10 is configured at serial interface S0/0/1 of router R2.

Router R2 is receiving hello packets from a neighbor with the IP address 192.168.10.10 via the R2S0/0/1 interface.


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Value

1correctness of

response



option

2



9.5.1 The Null0 Summary Route

42

Refer to the exhibit. What will happen if interface Serial0/0/1 goes down on Router1?

The Dijkstra algorithm will calculate the feasible successor.

DUAL will query neighbors for a route to network 192.168.1.0.

Neighbor 172.16.3.2 will be promoted to the feasible successor.

Traffic destined to the 192.168.1.0 network will be dropped immediately due to lack of a feasiblesuccessor.


Value



option

2



9.4.5 Topology Table: No Feasible

Successor

43 Which statement correctly describes a feasible successor in EIGRP?

It is a primary route that is stored in the routing table.

It is a backup route that is stored in the routing table.

It is a primary route that is stored in the topology table.

It is a backup route that is stored in the topology table.


1correctness of

response



option

2



9.4.4 Topology Table: Successor and Feasible

Successor44

Refer to the exhibit. A network administrator is trying to determine why router JAX has no OSPF

routes in its routing table. All routers are configured for OSPF area 0. From the JAX router, theadministrator is able to ping its connected interfaces and the Fa0/1 interface of the ORL router but no

other router interfaces. What is a logical step that the network administrator should take to troubleshoot

the problem?

Reboot the routers.

Change the OSPF process ID on all of the routers to 0.

Check to see if the cable is loose between ORL and JAX.

Check to see if CDP packets are passing between the routers.

Use show and debug commands to determine if hellos are propagating.


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Value




2


10.1.6 Building the Link-State Packet

45 Which of the following are required when adding a network to the OSPF routing process

configuration? (Choose three.)

network address

loopback address

autonomous system number

subnet mask

wildcard mask

area ID


Value

1correctness of

response


are correct.1 point for each correct option.



3




46

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.


Value



1 point for each correct option.0 points if more options areselected than required.

2




47 A network administrator is analyzing routing update behavior on a network that has both EIGRP and

OSPF configured on all routers. Both protocols appear in the output ofshow ip protocols. However,only EIGRP internal routes appear in the routing tables. Which statement correctly explains the

scenario?

The OSPF protocol has a higher cost than EIGRP.

The EIGRP protocol has a lower metric than OSPF.


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The EIGRP protocol was configured first on the router.

The EIGRP protocol has a lower administrative distance than OSPF.


Value

1correctness of

response



option

2





48

Refer to the exhibit. All routers are configured for OSPF area 0. The network administrator requiresthat R2 always be the DR and maintain adjacency.

Which two configurations can achieve this? (Choose two.)

Change the OSPF area of R2 to a higher value.

Change the router ID for R2 by assigning the IP address 172.16.30.5/24 to

the Fa0/0 interface.

Change the priority values of the Fa0/0 interfaces of R1 and R3 to 0.

Configure a loopback interface on R2, with an IP address higher than any IP

address on the other routers.

Configure R1 and R3 with an IP address whose value is higher than that of R2.


Value





2



11.4.2 DR/BDR Election Process

49

Refer to the exhibit. A network administrator has configured OSPF using the following command:

network 192.168.1.32 0.0.0.31 area 0

Which router interface will participate in OSPF?

FastEthernet0/0

FastEthernet0/1

Serial0/0/0

Serial0/0/1


Value

1correctness of

response



option

2




35/53


50 Which two statements are true for OSPF Hello packets? (Choose two.)

They are used for dynamic neighbor discovery.

They are used to maintain neighbor relationships.

They are used to determine the complete network topology.

They are used with timers to elect the designated router with the fastest link.

They are used to negotiate correct parameters among neighboring interfaces.


Value

1correctness of

response




2



11.1.4 Hello Protocol


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item.

Cisco Networking Academy content is copyrighted and the unauthorized posting, distribution or sharing ofthis exam content is prohibited.

1 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.


Value

1correctness of

response





2



2.1.1 Role of the Router

2

Refer to the exhibit. A network engineer has run the show version command on R3. Upon

rebooting, R3 does not load the start-up configuration settings.

What could be the cause of this problem?

There is insufficient NVRAM.

There is insufficient flash memory.

The configuration register is not configured with the default setting.

The system image file is not located in NVRAM.


Value



option

2



3 Which router component contains a scaled-down version of the IOS that can be used to reload

a complete version of the IOS in the event that the IOS becomes damaged or corrupted?

ROM

Flash

SDRAM

NVRAM


Value


37/53

1correctness of

response


option

2



1.1.2 Router CPU and Memory4

Refer to the exhibit. A network administrator adds this command to router R1: ip route

192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command?

This route is automatically propagated throughout the network.

The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.

A static route is established.

The traffic for all Class C networks is forwarded to 172.16.1.2.


Value

1correctness of

response



2



2.5.1 Configuring a Static Route with an ExitInterface

5

Refer to the exhibit. How many routes are ultimate routes?

3

4

5

7


Value

1correctness of

response



option

2



8.1.3 Level 1 Routes6

Refer to the exhibit. Which path will traffic from the 172.16.1.0/24 network take to get to the

10.0.0.0/24 network?

ADC

ABC

It will load balance the traffic between ADC and ABC

It will send the traffic via ABC, and will use ADC as a backup path only when ABC fails.


Value


38/53

1correctness of

response


option

2



3.3.3 Load Balancing7

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

192.168.1.0/24192.168.2.0/24


Value

1correctness of

response




2


2.3.3 Cisco Discovery Protocol (CDP)

8

Refer to the exhibit. The router receives a packet that is destined for 192.168.5.79. How will

the router handle this packet?

It will forward the packet via the FastEthernet0/0 interface.

It will forward the packet via the Serial0/0/0 interface.

It will forward the packet via the Serial0/0/1 interface.

It will drop the packet.


Value

1correctness of

response



option

2




9

Refer to the exhibit. What is the meaning of the highlighted value 120?

It is the metric that is calculated by the routing protocol.

It is the value that is used by the DUAL algorithm to determine the bandwidth for the link.

It is the administrative distance of the routing protocol.It is the hold-down time, measured in seconds, before the next update.


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Value

1correctness of

response



option

2



5.3.1 Verifying RIP: show ip route

10 When presented with multiple valid routes to a destination, what criteria does a router use to

determine which routes to add to the routing table?

The router selects the routes with the best metric. All routes that have the same best metric

are added to the routing table.The router first selects routes with the lowest administrative distance. The resulting routes

are then prioritized by metric and the routes with the best metric are added to the routing

table.The router selects the routes with the lowest administrative distance. All routes with the

same lowest administrative distance are added to the routing table.The router installs all routes in the routing table but uses the route with the best metricmost when load balancing.


Value

1correctness of

response



option

2


3.4.1 Purpose of Administrative

Distance

11 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 valueboth paths with load balancing


Value

1correctness of

response



option

2




12 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.


Value


40/53

1correctness of

response




2



10.1.1 Link-State Routing Protocols

13

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.


Value

1correctness of

response

Option 3, Option 4, and Option 6are correct.




3



8.1.2 Routing Table Entries

14

Refer to the exhibit. A device is required to complete the connection between router R1 and

the WAN. Which two devices can be used for this? (Choose two.)a CSU/DSU device

a modem

an Ethernet switch

a hub

a bridge


Value


Option 1 and Option 2 are correct.1 point for each correct option.0 points if more options are


2



15

Refer to the exhibit. When a static IP address is being configured on the host, what address

should be used for the default gateway?

10.1.1.1


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10.1.1.2

172.16.1.1

192.168.1.1


Value




2


1.2.1 Implementing Basic Addressing

Schemes

16

Refer to the exhibit. A network administrator accesses router R1 from the console port to

configure a newly connected interface. What p

31785040 ccna 2 final erouting final exam ccna exploration routing protocols and concepts version 4...

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