Exam 300-510 topic 1 question 189 discussion

Actual exam question from Cisco's 300-510

Question #: 189
Topic #: 1

Refer to the exhibit. An engineer at a large ISP is troubleshooting suboptimal routing on a customer’s IS-IS network with multiple Level 1-2 routers. The network consists of numerous routers that are configured for MPLS. When IS-IS picks the closest Level 1-2 router to exit the area, suboptimal routing occurs in Area 8 and Area 10. The other IGP protocols are running correctly, and the IS-IS adjacency between routers is established. Which action resolves the issue?

A. Redistribute Level 2 prefixes into Level 1 on router 2.
B. Disable advertisement of the default route on router 2.
C. Configure each interface as either Level 1 or Level 2 circuit type on router 1.
D. Configure the router as DIS for each of the interfaces on router 1.

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Suggested Answer: C 🗳️

by DUsoo at April 9, 2024, 10:17 a.m.

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DUsoo

1 year ago

Selected Answer: A

If we have more L1-L2 routers then "C" will not help. We should redistribute L2 prefixes to L1.

upvoted 1 times

Seele

9 months, 4 weeks ago

Hmnm, it didn't say that R1 should become a L1/L2 router but instead either a L1 or L2.

upvoted 1 times

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Exam 300-510 topic 1 question 189 discussion

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DUsoo

Seele

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