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Exam JN0-349 All Questions

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Exam JN0-349 topic 1 question 3 discussion

Actual exam question from Juniper's JN0-349
Question #: 3
Topic #: 1
[All JN0-349 Questions]

What are three reasons a BGP route would be hidden? (Choose three.)

  • A. The AS Path contains a 0.
  • B. It is suppressed by a damping policy.
  • C. The Local Preference is 0.
  • D. The next hop is unreachable.
  • E. It is rejected by a firewall term.
Show Suggested Answer Hide Answer
Suggested Answer: ABD 🗳️
by gpt_test at March 29, 2023, 2:12 a.m.

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Nyiko31477
1 year ago
Thank you for the explanations.
upvoted 1 times
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gpt_test
1 year, 8 months ago
Selected Answer: ABD
A. The AS Path contains a 0: BGP routes with an AS Path containing an AS number of 0 are considered invalid and are hidden. AS 0 is reserved and should not be used in the AS Path. B. It is suppressed by a damping policy: BGP route damping is a mechanism that suppresses unstable routes for a certain period of time. If a route flaps frequently, a damping policy may temporarily hide the route to avoid instability in the network. D. The next hop is unreachable: BGP routes with an unreachable next hop are considered hidden. A router will not use or advertise a route with an unreachable next hop, as it would not be able to forward packets along that path.
upvoted 4 times
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