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Exam 300-410 topic 1 question 9 discussion

Actual exam question from Cisco's 300-410
Question #: 9
Topic #: 1
[All 300-410 Questions]

What is a prerequisite for configuring BFD?

  • A. Jumbo frame support must be configured on the router that is using BFD.
  • B. All routers in the path between two BFD endpoints must have BFD enabled.
  • C. Cisco Express Forwarding must be enabled on all participating BFD endpoints.
  • D. To use BFD with BGP, the timers 3 9 command must first be configured in the BGP routing process.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by Isolated at June 27, 2020, 1:48 a.m.

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[Removed]
10 months, 2 weeks ago
Selected Answer: C
C is correct
upvoted 1 times
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MasoudGhorbani
1 year, 3 months ago
C is correct, CEF is a high-speed packet forwarding mechanism that BFD relies on to quickly detect link failures. CEF must typically be enabled for BFD to function properly on Cisco devices. Without CEF, the BFD packets might have to be process-switched (handled by the CPU), which could slow down the detection of failure
upvoted 1 times
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Ll123123
1 year, 7 months ago
Selected Answer: C
choose C
upvoted 2 times
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Alexloh
2 years, 11 months ago
Selected Answer: C
Agreed for C
upvoted 1 times
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xziomal9
3 years, 1 month ago
The correct answer is: C
upvoted 1 times
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Hack4
3 years, 3 months ago
the given answer is correct
upvoted 1 times
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Girmiti
3 years, 4 months ago
Prerequisites for Bidirectional Forwarding Detection •Cisco Express Forwarding (CEF) and IP routing must be enabled on all participating routers. https://www.cisco.com/en/US/docs/ios/12_4t/ip_route/configuration/guide/t_bfd.html#wp1043332
upvoted 2 times
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Sajj_gabi
4 years, 5 months ago
Prerequisites for Bidirectional Forwarding Detection Cisco Express Forwarding and IP routing must be enabled on all participating routers
upvoted 1 times
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Guitarman
4 years, 9 months ago
CCIEBYDEC is correct, it's the very first pre-requisite.....it's C
upvoted 1 times
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CCIEBYDEC
4 years, 9 months ago
answer is C https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs_bfd.html#wp1043332
upvoted 3 times
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Isolated
4 years, 11 months ago
Prerequisites for Bidirectional Forwarding Detection One of the IP routing protocols supported by BFD must be configured on the routers before BFD is deployed. ... The router must be running BFD Version 1. The BFD session type must be IPv4 single hop. BFD echo mode must be disabled for the session.
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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