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H12-821_V1.0 · Question #103

What should you do when a router running BGP receives a route whose next hop is unreachable?

The correct answer is C. Receive the route and add it to the BGP routing table. However, this route will not be preferred by BGP and will not be added to the IP routing table. See the full explanation below for the reasoning.

Question

What should you do when a router running BGP receives a route whose next hop is unreachable?

Options

  • ARefuse to join the BGP routing table and silently discard it
  • BRemove the route, add it to the BGP routing table, participate in BGP routing rules, it may be selected as the best route, and add it to the IP routing table
  • CReceive the route and add it to the BGP routing table. However, this route will not be preferred by BGP and will not be added to the IP routing table
  • DSend an error message to the router that issued the Update

How the community answered

(52 responses)
  • A
    10% (5)
  • B
    4% (2)
  • C
    83% (43)
  • D
    4% (2)

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