Question No. 1

Which difference must an engineer consider when choosing whether to implement OSPF or IS-IS as the routing protocol on the network?

AThe OSPF DR election process is deterministic, and the IS-IS DS election process is not deterministic.

BTo support fast convergence. OSPF uses the LSA arrival timer and IS-IS uses the PRC-interval timer.

CIS-IS supports ordinary, stub, totally-stub. and NSSA areas, but OSPF supports only stub areas.

DIS-IS links are associated with either a Level 1 area or a Level 2 area at one time, but OSPF links are associated with multiple areas at one time.

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Correct Answer: B

Question No. 2

Which feature is used in multicast routing to prevent loops?

ASTP

Binverse ARP

CRPF

Dsplit horizon

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Correct Answer: C

Question No. 3

Which statement about BFD on Cisco IOS XR Software is true?

ACisco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship.

BCisco IOS XR Software does not support BFD multihop for IPv4.

CCisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship.

DBFD is not compatible between Cisco IOS XR and Cisco IOS Software.

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Correct Answer: C

guide/b-routing-cg-asr9000-63x/b-routing-cg-asr9000-63x_chapter_0100.html

Question No. 4

Refer to the exhibit.

Refer to the exhibit. Customer A and customer B are connecting through a service provider network with these requirements

R1 acts as the mapping server to connect 10 0 0.0/30 and 172.16.0.0/30 networks

R1 and R2 are using nondefault SRG8 range to allocate SID.

R2 ads as the mapping client for transient traffic originating from customer A

Which configuration meets the requirements?

ARemove allocation of prefix SlDs for 10.0.0.0/30 and 172.16.0.0/30 on R1.

BConfigure segment-routing prefix-sid-map advertise-local on R1

CAllocate prefix SIDs for 10.0.0.0-30 and 172.16 0.0/30 subnets on R2

DConfigure segment-routing prefix-sid-map advertise-local on R2.

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Correct Answer: B

Question No. 5

After changing the IP address on an IOS XR router, an engineer cannot ping the new address Which step did the engineer forget to complete?

Acommit the configuration

Broll back the configuration

Csave the running configuration

Dmerge the configuration

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Correct Answer: A

Free Cisco 300-510 Exam Actual Questions