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Huawei Exam H12-821_V1.0 Topic 4 Question 80 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam
Question #: 80
Topic #: 4
[All H12-821_V1.0 Questions]

BFD provides fast fault detection independent of media and routing protocols. To use this mechanism to detect link connectivity, devices at both ends must support this feature.

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Suggested Answer: A

Comprehensive and Detailed Step-by-Step

Bidirectional Forwarding Detection (BFD):

BFD is a lightweight protocol that provides rapid fault detection on links independent of the underlying routing protocol or media.

Requirements for BFD:

Both devices at the endpoints of the link must support and configure BFD for it to operate.

If one device does not support BFD, the feature cannot be used for link detection.


HCIA-Datacom Study Guide, Chapter: BFD Overview

Huawei BFD Configuration Guidelines

by Truman at Mar 19, 2025, 12:59 AM

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Dominga
10 days ago
Well, duh. If it's not supported on both ends, it's not gonna work. Although, I bet there's someone out there who would still try to force it just for fun.
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Gene
12 days ago
Haha, I bet the engineers who came up with BFD were just sitting around, trying to one-up each other with 'how fast can we break this?'
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Graciela
14 days ago
Yes, that's correct. Both ends must support BFD for link connectivity detection.
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Melda
14 days ago
True, true. If both ends don't support it, then it's a no-go. Might as well just use carrier pigeons instead.
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Christiane
17 days ago
But do both ends need to support it for link connectivity detection?
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Pauline
18 days ago
I agree with Izetta, BFD does provide fast fault detection.
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Nilsa
20 days ago
Definitely TRUE! BFD is super fast at catching those pesky link issues. Gotta love those redundant paths!
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Kent
10 days ago
Agreed! BFD is a great tool for detecting faults quickly.
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Vesta
16 days ago
A) TRUE
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Izetta
29 days ago
I think the statement is TRUE.
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