Cisco Exam 300-510 Topic 8 Question 85 Discussion

Actual exam question for Cisco's 300-510 exam

Question #: 85
Topic #: 8

Refer to the exhibit.

IS-IS is the routing protocol on the network. After the team noticed excessive CPU usage on all routers, particularly routers R2 and R6, they configured route summarization on all routers. However, a network engineer noticed that summary routes and more specific routes are present in the routing table on R1. Which action must the team take so that R1 receives only the summary routes?

AConfigure R2 and R4 to perform summarization for Level 1 routers.

BConfigure R3 to perform summarization for Level 1 routers, and configure R6 to perform summarization for Level 2 routers.

CConfigure R3 and R5 to perform summarization for Level 1 and Level 2 routers.

DConfigure R6 only to perform summarization for all routers.

Show Suggested Answer

Suggested Answer: B

by Corinne at Apr 30, 2024, 02:47 PM

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Jesusa

6 months ago

Summarizing is a good step to reduce CPU usage. But the exact routers doing it make a big difference. I think B is logical to separate load by levels.

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Jettie

6 months ago

For some reason, I think only R6 doing summarization (option D) might be too centralized. Distributed might be better.

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Ailene

6 months ago

Not sure about B. I feel that C is better as it involves R3 and R5 which makes it comprehensive for all levels.

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Mable

6 months ago

I disagree. I believe option B could be the answer since R3 and R6 handling different levels can ensure summarization properly.

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Sylvia

7 months ago

Yeah, it does need a thorough understanding. I think option A makes sense because R2 and R4 are upstream routers.

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Franklyn

7 months ago

This question seems tricky. The routing protocols and summarization part always confuses me.

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