CCNP Route (BGP Practice Questions)

Exam Code 300-101

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Q8. Which of the following are well-known mandatory attributes used in BGP? [Choose all that apply].

A. AS_PATH

B. NEXT_HOP

C. ORIGIN

D. COMMUNITIES

Correct Answer: A,B,C

Explanation:

Well-Known mandatory attributes must appear in all BGP update messages. The well-known mandatory messages are:
1. AS_PATH: BGP messages carry the sequence of AS numbers indicating the complete path a message has traversed.
2. NEXT_HOP: This attribute indicates the IP address of the next-hop destination router.
3. ORIGIN: This attribute tells the receiving BGP router, the BGP type of the original source of the NLRI information.

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