642- · PDF file642-902 Cisco Implementing Cisco IP Routing ... actual 642-902 exam...

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    642-902CiscoImplementing Cisco IP Routing

    http://www.officialcerts.com/exams.asp?examcode=642-902

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  • QUESTION: 1Refer to the output. What IOS command produces this output? Select the best response.

    A. show ip ospfB. show ip ospf interfaceC. show ipv6 ospf interfaceD. show ipv6 ospf

    Answer: D

    QUESTION: 2Refer to the partial configurations in the exhibit. What address is utilized for DR and BDRidentification on Router1?

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  • Select the best response.

    A. the serial 1/1 addressB. the serial 2/0 addressC. a randomly generated internal addressD. the configured router-id address

    Answer: D

    QUESTION: 3Which two routing protocols require a metric to be configured when redistributing routes fromother protocols? (Choose two.) Select 2 response(s).

    A. RIPB. OSPFC. EIGRPD. IS-ISE. BGP

    Answer: A, C

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  • QUESTION: 4Which statement is true about OSPF Network LSAs? Select the best response.

    A. They are originated by every router in the OPSF network. They include all routers on thelink, interfaces, the cost of the link, and any known neighbor on the link.B. They are originated by the DR on every multi-access network. They include all attachedrouters including the DR itself.C. They are originated by Area Border Routers and are sent into a single area to advertisedestinations outside that area.D. They are originated by Area Border Router and are sent into a single area to advertise anAutonomous System Border Router.

    Answer: B

    QUESTION: 5Refer to the exhibit. The actual speed of the serial links between R2 and R3 are 256 kb/s and512 kb/s respectively. When configuring EIGRP on routers R2 and R3, the networkadministrator configured the bandwidth of both serial interfaces to 512 kb/s. What will be theeffect? Select the best response.

    A. EIGRP will overutilize the 512 kb/s link.B. The interface "delay" value used in the EIGRP metric calculation will be inaccurate on the256 kb/s serial interface.C. The amount of bandwidth used for EIGRP routing protocol traffic on the 256 kb/s link canbecome excessive.D. EIGRP can load balance between the two serial links only if the variance is set to 2 orhigher. E. Unequal cost load balancing will be disabled.

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  • Answer: C

    QUESTION: 6Refer to the exhibit. ROUTE.com has just implemented this EIGRP network. A networkadministrator came to you for advice while trying to implement load balancing across part oftheir EIGRP network. If the variance value is configured as 2 on all routers and all other metricand K values are configured to their default values, traffic from the Internet to the data centerwill be load balanced across how many paths?

    Select the best response.

    A. 1B. 2C. 3D. 4E. 5

    Answer: C

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  • QUESTION: 7Refer to the exhibit. A Boston company bought the assets of a New York company and is tryingto route traffic between the two data networks using EIGRP over EoMPLS. As a networkconsultant, you were asked to verify the interoperability of the two networks. From the show iproute command output, what can you tell the customer about the traffic flow between the subnetin New York (172.16.8.0/24) and the subnets in Boston (172.16.16.0/24 and 10.10.16.0/24)?Select the best response.

    A. Traffic is flowing between the 172.16.8.0 subnet and subnets 172.16.16.0 and 10.10.16.0 andno configuration changes are needed.B. Auto-summary must be disabled on N1 and B1 before traffic can flow between the172.16.8.0 subnet and subnets 172.16.16.0 and 10.10.16.0.C. Traffic will flow between the 172.16.8.0 subnet and 172.16.16.0 without any furtherconfiguration changes. However, auto-summary must be disabled on N1 and B1 before trafficcan flow between the 172.16.8.0 subnet and the 10.10.16.0 subnet.D. Auto-summary must be disabled on N1 and B1 before traffic can flow between the172.16.8.0 subnet and the 172.16.16.0 subnet. However, traffic will flow between the172.16.8.0 subnet and 10.10.16.0 without any further configuration changes.

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  • Answer: B

    QUESTION: 8Based on the need to limit processing and bandwidth utilization due to dynamic routing protocoloperation, the following routing requirements have been specified for your network. - partial and incremental routing updates - only the devices affected by a topology change perform route recomputation - route recomputation only occurs for routes that were affectedWhich dynamic routing protocol should be deployed in your network to best meet theserequirements? Select the best response.

    A. BGPB. OSPFC. IS-ISD. EIGRPE. RIPv2

    Answer: D

    QUESTION: 9Your network consists of a large hub-and-spoke Frame Relay network with a CIR of 56 kb/s foreach spoke. Which statement about the selection of a dynamic protocol is true? Select the bestresponse.

    A. EIGRP would be appropriate if LMI type ANSI is NOT used.B. EIGRP would be appropriate, because the Frame Relay spokes could be segmented into theirown areas.C. EIGRP would be appropriate, because by default, queries are not propagated across the slowspeed Frame Relay links.D. EIGRP would be appropriate, because you can manage how much bandwidth is consumedover the Frame Relay interface.

    Answer: D

    QUESTION: 10

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  • When an EIGRP topology change is detected, what is the correct order of events when there is aFS? Select the best response.

    A. The neighbor adjacency is deleted. The feasible route is used. DUAL is notified. Remove alltopology entries learned from that neighbor.B. DUAL is notified. Remove all topology entries learned from that neighbor. The neighboradjacency is deleted. Routes enter the Active state and the feasible route is used.C. The neighbor adjacency is deleted. Routes enter the Active state and the feasible route isused. DUAL is notified. Remove all topology entries learned from that neighbor.D. DUAL is notified. The neighbor adjacency is deleted. Remove all topology entries learnedfrom that neighbor. The feasible route is used.

    Answer: D

    QUESTION: 11Which BGP option is required when load sharing over multiple equal-bandwidth parallel linksfrom a single CE router to a single ISP router over eBGP? Select the best response.

    A. eBGP MultipathB. eBGP MultihopC. BGP SynchronizationD. Public AS numbers

    Answer: B

    QUESTION: 12Refer to the exhibit. A client has asked you to consult on an eBGP loading question. Currentlythe AS 100 eBGP links have an average outbound load of 65% and 20% respectively. Onfurther investigation, traffic from 10.10.24.0 accounts for 45%, and 10.10.25.0 and 10.10.32.0accounts for 20% each of the outbound load. The customer wants to spread the load between thetwo eBGP links more evenly. The BGP attributes are currently set at their default values. If youare located at AS 100 and want to influence how AS 100 sends traffic to AS 200, what BGPattribute could you configure to cause AS 100 outbound traffic to load the eBGP links moreevenly?

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  • Select the best response.

    A. On router A, set the default local-preference to 50.B. On router B, set the default metric to 150.C. On router B, configure a route map for 10.10.25.0/24 with a local preference of 150 linked toneighbor192.168.30.2.D. On router B, set the default local-preference to 150.

    Answer: C

    QUESTION: 13Which two methods use IPsec to provide secure connectivity from the branch office to theheadquarters office? (Choose two.) Select 2 response(s).

    A. DMVPNB. MPLS VPNC. Virtual Tunnel Interface (VTI)D. SSL VPNE. PPPoE

    Answer: A, C

    QUESTION: 14

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  • Which DSL encapsulation method requires client software running on the end-user PC that isdirectly connected to a DSL modem? Select the best response.

    A. PPPoAB. PPPoEC. PPPD. L2TPE. ATM

    Answer: B

    QUESTION: 15Refer to the exhibit. R1 accesses the Internet using E0/0. You have been asked to configure R1so that a default route is generated to its downstream devices (191.0.0.1 and 192.0.0.1). Whi