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

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.
A) TRUE
B) FALSE

Huawei H12-821_V1.0 Exam - 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.

Show Suggested Answer Hide Answer
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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In
9 months ago
I thought it worked even if one device didn't support it.
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Kimberlie
9 months ago
Totally agree, it's essential for proper functionality.
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France
10 months ago
Yep, fast fault detection is a game changer!
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Felix
10 months ago
Wait, are you sure about that? Sounds a bit off.
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Fernanda
10 months ago
That's true, both devices need to support it.
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Ashton
10 months ago
I’m a bit confused, though. What if only one device supports it? Does that mean BFD wouldn’t work at all?
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Carli
11 months ago
I’m pretty confident it’s true; BFD relies on both ends being able to send and receive those packets.
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Vallie
11 months ago
I remember a practice question about BFD, and it mentioned something similar about device compatibility.
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Lanie
11 months ago
I think it's true that both devices need to support BFD for it to work properly, but I’m not entirely sure.
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Kris
11 months ago
I'm not too familiar with BFD, but the question seems to be implying that it's a feature that needs to be supported by both ends. I'll make a guess and go with TRUE.
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Daren
11 months ago
Okay, I think I got this. If BFD is used to detect link connectivity, then both devices on the link need to support the feature, so the answer must be TRUE.
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Annamaria
12 months ago
Hmm, I'm a bit unsure about this one. I'll need to think it through carefully to make sure I understand the concept of BFD and how it works.
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Fallon
12 months ago
This seems straightforward, the question is asking if both devices need to support BFD to use it for link connectivity detection.
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Dominga
1 year 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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Arleen
1 year ago
Definitely, it's important for both devices to support it for it to function properly.
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Lenny
1 year ago
B) FALSE
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Laticia
1 year ago
Yeah, you're right. It won't work if both ends don't support it.
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Glory
1 year ago
A) TRUE
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Shoshana
1 year ago
I agree, it wouldn't make sense to try to force it if it's not supported on both ends.
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Vannessa
1 year ago
Yeah, it's important that both ends support it for it to work properly.
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Tyra
1 year ago
B) FALSE
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Valentine
1 year ago
A) TRUE
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Gene
1 year 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
1 year ago
Yes, that's correct. Both ends must support BFD for link connectivity detection.
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Melda
1 year 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
1 year ago
But do both ends need to support it for link connectivity detection?
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Pauline
1 year ago
I agree with Izetta, BFD does provide fast fault detection.
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Nilsa
1 year ago
Definitely TRUE! BFD is super fast at catching those pesky link issues. Gotta love those redundant paths!
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Leonor
1 year ago
B) FALSE
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Tarra
1 year ago
Absolutely, BFD is a great tool for detecting faults quickly.
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Kristin
1 year ago
A) TRUE
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Blossom
1 year ago
B) FALSE
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Kent
1 year ago
Agreed! BFD is a great tool for detecting faults quickly.
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Vesta
1 year ago
A) TRUE
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Izetta
2 years ago
I think the statement is TRUE.
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