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Exam 300-510 topic 1 question 51 discussion

Actual exam question from Cisco's 300-510
Question #: 51
Topic #: 1
[All 300-510 Questions]

Which statement about BFD on Cisco IOS XR Software is true?

  • A. Cisco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship.
  • B. Cisco IOS XR Software does not support BFD multihop for IPv4.
  • C. Cisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship.
  • D. BFD is not compatible between Cisco IOS XR and Cisco IOS Software.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-3/routing/configuration/guide/b-routing-cg-asr9000-63x/b-routing-cg-asr9000-
63x_chapter_0100.html
by t567 at Oct. 30, 2021, 9:22 a.m.

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thejag
10 months, 2 weeks ago
Selected Answer: C
It's strange but true!
upvoted 1 times
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t567
2 years, 12 months ago
C A router running BFD in Cisco IOS software can designate a router running BFD in Cisco IOS XR software as its peer using the bfd neighbor command; the Cisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship. https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r6-1/routing/configuration/guide/b-routing-cg-crs-61x/b-routing-cg-crs-61x_chapter_0100.html
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