Cisco Sem2 PDF

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Close Window http://cisco-exam.blogspot.com 100% correct Assessment System ERouting Final Exam - CCNA Exploration: Routing Protocols and Concepts (Version 4.0) 1 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. 2 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 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. http://cisco-exam.blogspot.com 4 ERouting Final Exam - CCNA Exploration: Routing Protocols and Conc... file:///C:/CCNA%202/final%20set-1/exam_viewer.html 1 of 19 10/19/2008 2:12 PM A-PDF Merger DEMO : Purchase from www.A-PDF.com to remove the watermark

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Assessment System

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

1 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.

2

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

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.

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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

5

Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)

The administrative distance of EIGRP has been set to 50.

All routes are stable.

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

The serial interface between the two routers is down.

Each route has one feasible successor.

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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.

7 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

8 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.

9 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.

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Refer to the exhibit. Which statement is true about router R2?

The routing table content indicates that interface S0/0/0 is administratively down.

The route for 172.16.1.0 is a static route.

A packet that is destined for a host on the 172.16.3.0 network is forwarded without performing a routing table lookup.

The packets that are routed to network 172.16.1.0 require two routing table lookups.

11

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.

12

Refer to the exhibit. Although R2 is configured correctly, host A is unable to access the Internet. Which two static routes can be

configured on R1 to enable Internet connectivity for host A? (Choose two.)

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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

ip route 209.165.202.0 255.255.255.0 10.1.1.2

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13

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.

14

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 between PC1 and 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.

15 A network administrator uses the RIP routing protocol to implement routing within an autonomous system. What are two characteristics of

this protocol? (Choose two.)

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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.

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16

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.

17 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

18

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.

19 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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20

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

21

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.

22 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.

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23 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.

24

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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.

25

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

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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

27

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

3

4

5

7

28

Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?

Router1

Router2

Router3

Router4

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29 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.

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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.

30

Refer to the exhibit. R2 is configured correctly. The network administrator has configured R1 as shown. Which two facts can be deduced

from the configuration of R1? (Choose two.)

R1 will forward the route information for subnet 192.168.100.0/30.

The administrative distance has been set to 50 on R1.

R1 will not forward route information for subnet 192.168.100.4.0/30.

R1 will forward the EGRP update for subnet 10.10.10.0/30.

Autosummarization must be enabled.

31

Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement

is true?

Routers B, C, and D have no access to the Internet.

The link to the ISP will be excluded from the routing protocol process.

A default route must be configured on every router.

The wildcard mask is incorrectly configured.

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32 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

33

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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.

34

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.

35 Which routing protocol maintains a topology table separate from the routing table?

IGRP

RIPv1

RIPv2

EIGRP

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Refer to the exhibit. A ping between the serial interfaces of R1 and R2 is successful, but a ping between their FastEthernet interfaces

fails. 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 both routers.

37

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.

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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.

39

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 192.168.1.0/24 is missing from the routing table of R2.

The entry for 10.1.1.0/30 is missing from the routing table of R1.

The entry for 10.1.1.0/30 is missing from the routing table of R2.

The entry for 192.168.1.0/24 is missing from the routing table of R1.

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

40 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

41

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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

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42

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

43

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.

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The subnet mask for the Fa0/0 interface of R1 is incorrect.

44

Refer to the exhibit. Which two components are required to complete the configuration? (Choose two.)

a CSU/DSU device

a DTE device

a DCE device

a crossover cable

a V.35 cable

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45 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.

46

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

47

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 will be unable to ping 192.168.1.2.

The router has two interfaces that participate in the RIP process.

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The router will forward the updates for 192.168.1.0 on interface Serial0/0/1.

The router is not originating routes for 172.16.1.0.

48

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.

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49

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.

50

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.

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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.

51

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.

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52 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.

53

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.

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Configure both routers with the same EIGRP process ID.

54

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.

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55 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.

56

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.

57 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.

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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.

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ERouting Final Exam - CCNA Exploration: Routing Protocols and Conc... file:///C:/CCNA%202/final%20set-1/exam_viewer.html

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1 A company is developing an Internet store for its website. Which protocol should be used to transfer credit card information from customers to the company web server? FTPS HTTP HTTPS WEP2 TFTP 2 Refer to the exhibit. A new branch office has been added to the corporate network and a new router is to be installed to allow branch office users to access the database server at headquarters. How should the serial 0/0/0 interface of the new branch office router be configured to connect to the headquarters router? branch_23(config-if)# ip address 192.168.5.19 255.255.255.240branch_23(config-if)# no shutdown branch_23(config-if)# encapsulation hdlcbranch_23(config-if)# ip address 192.168.5.25 255.255.255.240branch_23(config-if)# no shutdownbranch_23(config-if)# encapsulation ppp branch_23(config-if)# no shutdown branch_23(config-if)# encapsulation pppbranch_23(config-if)# ip address 192.168.5.33 255.255.255.240 branch_23(config-if)# encapsulation ppp branch_23(config-if)# ip address 192.168.5.21 255.255.255.240branch_23(config-if)# no shutdown 3Which two commands ensure that any password that permits access to the privileged EXEC mode is not shown in plain text when the configuration files are displayed? (Choose two.) Router(config)# enable secret cisco Router(config)# enable cisco Router(config)# encryption-password all Router(config)# enable login encrypted Router(config)# enable password encryption Router(config)# service password-encryption 4A new network is to be configured on a router. Which of the following tasks must be completed to configure this interface and implement dynamic IP routing for the new network? (Choose three.) Select the routing protocol to be configured. Assign an IP address and subnet mask to the interface

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Update the ip host configuration information with the device name and new interface IP address. Configure the routing protocol with the new network IP address. Configure the routing protocol with the new interface IP address and subnet mask. Configure the routing protocol in use on all other enterprise routers with the new network information. 5 How does TCP ensure the reliable transfer of data? if data segments are not received from the source, the destination requests that the segments be resent. If an acknowledgment of the transmitted segments is not received from the destination in a predetermined amount of the time, the source resends the data. TCP uses the SYN-ACK portion of the three-way handshake to ensure that all data has been received. The TCP Protocol Interpreter process verifies the transmitted data at source and destination. 6 A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP for this network can only supply five public IPs. What can be used to accomplish this task? routable translation dynamic translation static translation port address translation 7What is the most commonly used exterior routing protocol? BGP RIP OSPF EIGRP 8 Refer to the exhibit. The network administrator needs to configure the router with a name. Which command will the administrator use to configure the router name? Router# ip hostname Boise Router# enable hostname Boise Router(config-line)# name Boise Router(config)# hostname Boise Router(config)# ip hostname Boise 9Why are port numbers included in the TCP header of a segment?

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to indicate the correct router interface that should be used to forward a segment to identify which switch ports should receive or forward the segment to determine which Layer 3 protocol should be used to encapsulate the data to enable a receiving host to forward the data to the appropriate application to allow the receiving host to assemble the packet in the proper order 10What is the purpose of the routing process? to encapsulate data that is used to communicate across a network to select the paths that are used to direct traffic to destination networks to convert a URL name into an IP address to provide secure Internet file transfer to forward traffic on the basis of MAC addresses 11Which two statements are true about the use of the debug ip rip command on a Cisco router? (Choose two.) The debug ip rip command displays RIP routing activity in real time. The debug ip rip command can be issued at the user EXEC configuration mode. The debug ip rip command displays a combination of the information that is displayed by the show ip route and show ip protocols commands. Because of router processor usage, the debug ip rip command should be used only when necessary. The debug ip rip command should be used instead of the show ip route command whenever possible. 12What minimum configurations must be set on a host to allow a request to be sent to http://www.cisco.com/? (Choose four.) DNS server WINS server IP address NetBIOS subnet mask default gateway 13A Catalyst 2960 switch has been taken out of storage to be used as a temporary replacement for another switch that needs to be repaired. About a minute after the switch has started, the SYST LED on the front of the switch transitions from blinking green to amber. What is the meaning of the amber SYST LED? The switch has no configuration file in NVRAM. The switch has failed POST and must be sent for service. The switch is functioning properly. The switch is in half-duplex mode.

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14Refer to the exhibit. Which combination of cables and symbols is correct? A - crossover, B - straight-through, C - straight-through A - crossover, B - rollover, C - straight-through A - straight-through, B -crossover, C - straight-through A - straight-through, B -straight-through, C - straight-through A - straight-through, B - straight-through, C - crossover A - rollover, B - straight-through, C - straight-through 15After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring? transport network data link physical 16What are three characteristics of the TCP protocol? (Choose three.) exchanges datagrams unreliably is used to send IP error messages forces the retransmission of unacknowledged packets creates a virtual session between end-user applications carries the IP address of the destination host in the TCP header is responsible for breaking messages into segments and reassembling them at their destination 17Refer to the exhibit. The network shown is connected using services from the same ISP. How will the Fohi router dynamically learn routes to the 192.168.16.16/28, 192.168.16.32/28, and 192.168.16.64/28 subnetworks? with BGP with a static route with a directly connected route with an interior routing protocol 18Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1? rollover console crossover straight-through

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19When customers use credit cards to make purchases at a small business, a modem is heard dialing a telephone number to transfer the transaction data to the central office. What type of WAN serial connection is in use? leased line packet switched circuit switched point-to-point 20 A user reports being unable to access the Internet. The help desk technician employs a bottom-up approach to troubleshooting. The technician first has the user check the patch cable connection from the PC to the wall, and then has the user verify that the NIC has a green link light. What will the technician have the user do next? Enter an IP address into the WWW browser address bar to see if DNS is at fault. Use traceroute to identify the device along the path to the ISP that may be at fault. Verify the IP address, subnet, and gateway settings using ipconfig on the PC . Connect to the user home router to check firewall settings for blocked TCP ports. 21 A ping 192.1.1.20 command is issued on workstation A to determine if workstation B can be reached. What events will occur if this command is successful? (Choose two.) The router will block the ping request message. The router will reply to the echo request with a proxy ping response. Workstation A will send a UDP ping request message to workstation B. Workstation B will send a UDP ping reply message to workstation A. Workstation A will send an ICMP echo request message to workstation B. Workstation B will send an ICMP echo reply message to workstation A.

22How does a router know of paths to destination networks? (Choose two.) inspection of the destination IP address in data packets ARP requests from connected routers manual configuration of routes updates from other routers DHCP information broadcasts updates from the SMTP management information base 23Refer to the exhibit. Which two statements describe the data conversation shown? (Choose two.) The data conversation was started by the HTTP application process running on the client. The data conversation is identified by TCP port 80 on the client. The user started the data conversation by sending an e-mail. The IP address of the Internet server is 192.168.17.43 .

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The Internet server will send data to port 8547 on the client. 24What is one purpose of the TCP three-way handshake? sending echo requests from the source to the destination host to establish the presence of the destination determining the IP address of the destination host in preparation for data transfer requesting the destination to transfer a binary file to the source synchronizing sequence numbers between source and destination in preparation for data transfer 25Which type of address is 192.168.17.111/28? host address network address broadcast address multicast address 26A customer reports connectivity problems to an ISP technician. Upon questioning the customer, the technician discovers that all network applications are functioning except for FTP. What should the technician suspect is the problem? misconfigured firewall bad port on switch or hub misconfigured IP addressing on the customer's workstation wrong DNS server configured on the customer's workstation wrong default gateway configured on the customer's workstation 27The show ip route command was executed on one of the routers shown in the graphic and the following output was displayed: C 192.168.4.0/24 is directly connected, Serial0/0R 192.168.5.0/24 [120/1] via 192.168.4.2, 00:00:19, Serial0/0 R 192.168.1.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1R 192.168.2.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1C 192.168.3.0/24 is directly connected, Serial0/1From which router was this command executed? A B C D 28Refer to the exhibit. Which two sets of commands are required to configure passwords for all management ports on a Catalyst 2960 switch? (Choose two.)

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ALSwitch(config)# interface vlan 1ALSwitch(config-if)# password ciscoALSwitch(config-if)# loginALSwitch(config)# line vty 0 4ALSwitch(config-line)# password ciscoALSwitch(config-line)# loginALSwitch(config)# line vty 0 15ALSwitch(config-line)# password ciscoALSwitch(config-line)# loginALSwitch(config)# enable secret classALSwitch(config)# enable password cisco ALSwitch(config)# interface fa0/1ALSwitch(config-if)# password ciscoALSwitch(config-if)# no shutdownALSwitch(config)# line cons 0 ALSwitch(config-line)# password ciscoALSwitch(config-line)# login29A user reports being able to access the Internet but not being able to download e-mail from the mail server at the ISP. What should the user check on the user workstation? the POP3 and SMTP server settings in the e-mail application the patch cable connections at the back of the workstation and at the wall plate the DHCP settings in the operating system the IP address, mask, and default gateway values the NIC drivers 30Refer to the graphic. Which command will configure a static route on Router A to direct traffic from LAN A that is destined for LAN C? RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.5.2 RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2 RouterA(config)# ip route 192.168.5.0 255.255.255.0 192.168.3.2 RouterA(config)# ip route 192.168.3.0 255.255.255.0 192.168.3.1 RouterA(config)# ip route 192.168.3.2 255.255.255.0 192.168.4.0 31Which subnet masks could be used when subnetting a Class B IP address? (Choose two.) 255.255.255.240 255.255.192.0 255.255.0.0 255.192.0.0 240.0.0.0 255.0.0.0

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32 Refer to the exhibit. The network administrator has configured the RTA and RTB interfaces. In order to allow hosts that are attached to RTA to reach the server that is attached to RTB, a static route from RTA to the server LAN and a default route from RTB back to RTA need to be configured. Which two commands will the administrator use to accomplish these tasks on the two routers? (Choose two.) RTA(config)# ip route 10.16.10.5 255.255.255.252 10.16.10.6 RTA(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6 RTA(config)# ip route 10.16.10.96 255.255.255.252 10.16.10.6 RTB(config)# ip route 10.16.10.6 255.255.255.248 10.16.10.6 RTB(config)# ip route 0.0.0.0 0.0.0.0 S0/0/1 RTB(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6 33How do port filtering and access lists help provide network security? They prevent specified types of traffic from reaching specified network destinations. They alert network administrators to various type of denial of service attacks as they occur. They prevent viruses, worms, and Trojans from infecting host computers and servers. They enable encryption and authentication of confidential data communications. 34 Refer to the exhibit. The network administrator of the building in the graphic needs to choose the type of cable best suited to add ServerB to the network. Which cable type is the best choice? STP UTP coaxial fiber optic 35What is used by a routing protocol to determine the best path to include in the routing table? Convergence time Default distance Metric Type of router 36Refer to the exhibit. Which IP addresses could be assigned to the hosts in the diagram? (Choose two.) 192.168.65.31 192.168.65.32 192.168.65.35 192.168.65.60

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192.168.65.63 192.168.65.64 37Given the network 192.168.25.0 shown in the graphic, which subnet mask would accommodate the number of hosts in each subnet? 255.255.0.0 255.255.224.0 255.255.255.0 255.255.255.224 255.255.255.240 255.255.255.248 38 Which two protocols allow network devices to report their status and events to a centralized network management device? (Choose two.) Syslog Telnet HTTP HTTPS SNMP 39What is true regarding the differences between NAT and PAT? PAT uses the word "overload" at the end of the access-list statement to share a single registered address. Static NAT allows an unregistered address to map to multiple registered addresses.Dynamic NAT allows hosts to receive the same global address each time external access is required. PAT uses unique source port numbers to distinguish between translations.40Refer to the exhibit. The graphic shows the output of a command issued on router RTB. According to the output, what two statements are true of router RTB? (Choose two.) The router is connected to a router named Boise.Router RTB is connected to a Cisco 1841 router.Router RTB is directly connected to two other routers.The IP address of the router interface connected to router RTB is 192.168.2.6 .The RTB router is connected to two Cisco devices by Fast Ethernet links. 41Refer to the exhibit. The network administrator uses the command below to configure a default route to the ISP network : RTB(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.6A ping issued from the ISP is successful to router RTB. However, ping echo request packets arrive at a host that is attached to the Fa0/0 interface of RTB, and the replies do

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not make it back to the ISP router. What will fix this problem? The ISP must be configured to forward packets from the 192.168.1.0 network. The ip route command needs to be edited so that the next hop address is 10.1.1.5.The ip route command needs to be edited so that the 192.168.1.1 address is the next hop address. The ip route command should be removed from the RTB router configuration. 42 A network technician is using a network management station to gather data about the performance of devices and links within the ISP. Which application layer protocol makes this possible? SNMPFTPDHCPSMTP 43What are two purposes of DNS? (Choose two.) to dynamically assign IP addressing information to network hoststo simplify the administration of host and default gateway addressing on client computersto assign TCP port numbers to hosts as part of the data transfer processto resolve human-readable domain names to numeric IP addressesto replace the static HOSTS file with a more practical dynamic system 44A hacker attempts to reach confidential information that is stored on a server inside the corporate network. A network security solution inspects the entire packet, determines that it is a threat, and blocks the packet from entering the inside network. Which security measure protected the network? an IDS an IPS a host-based firewall Anti-X software 45 How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0? 30 256 2046 2048 4094 4096

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46In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another? destination network addresssource network addresssource MAC addresswell known port destination address 47 A small tire retailer requires a low-cost WAN connection to its headquarters in order to manage its inventory and process customer sales in real time. Which WAN connection type is best suited to its needs? SonetT3dialupDSLleased line 48The command copy tftp running-config has been entered on the router. What will this command do? copy the configuration in RAM to a servercopy the configuration file from a server to RAMcopy the configuration file in NVRAM to RAMcopy the configuration file in NVRAM to a servercopy the configuration file from a server to NVRAM 49Refer to the exhibit. The network administrator needs to configure the Fa0/0 interface of RTB so that hosts from RTA can connect to the server that is attached to RTB. Which two commands will the administrator use to accomplish this task? (Choose two.) RTB# ip address 192.168.102.98 255.255.255.248RTB(config-if)# ip address 192.168.102.99 255.255.255.252RTB(config)# ip address 192.168.102.97 255.255.255.252RTB(config)# no shutdownRTB(config-if)# no shutdownRTB(config-if)# ip address 192.168.102.97 255.255.255.252 50Refer to the exhibit. A NOC technician at an ISP enters the command shown. What are two reasons to use this command? (Choose two.) to map the path to 192.168.1.7to test reachability to 192.168.1.7 to locate connectivity problems along the route to 192.168.1.7 to identify the ISPs that interconnect the NOC with the remote host with the address 192.168.1.7

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to measure the time that packets take to reach 192.168.1.7 and return to the technician's workstation

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Assessment System

1. Assessment Selection 2. Assessment Settings 3. Take Assessment

Take Assessment - ERouting Final Exam - CCNA Exploration: Routing Protocols and Concepts (Version

4.0)

Time Remaining:

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.

2

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.

3 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.

4 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.

5 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.

6 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

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access point

Ethernet switch

7

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

8

Refer to the exhibit. Two routers that are configured for area 0 are unable to establish neighbor 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.

9

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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.

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

route poisoning

split horizon

hold-down timer

triggered updates

11

Refer to the exhibit. Two remote sites are connected to the HQ router. The router New is configured using RIPv2 and the router BR1 is

configured using EIGRP. If HQ is configured with RIPv2 and EIGRP, how will the 172.16.10.0/24 network be added to the routing table of

HQ after the network converges?

with two paths of the same cost to the 172.16.10.0/24 network

with one path to the 172.16.10.0/24 network via router BR1

with one path to the 172.16.10.0/24 network via router NEW

with two paths of different cost to the 172.16.10.0/24 network

12 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.

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

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

13

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

1

2

3

4

5

6

14

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.

15 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

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All contents copyright 1992-2009 Cisco Systems, Inc. Privacy Statement and Trademarks.

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