Huawei H12-351_V1.0 Exam - Topic 4 Question 46 Discussion

Actual exam question for Huawei's H12-351_V1.0 exam

Question #: 46
Topic #: 4

In a dual-link backup scenario, the active/standby link switchover mode is set to priority. When the active link recovers, the AP detects that the original active link has a higher priority and triggers a switchback. How many Echo intervals does the AP wait for before switching back to the original primary WAC?

A20

B10

C15

Show Suggested Answer

Suggested Answer: C

In a dual-link backup scenario, when the active link recovers, the AP waits for 15 Echo intervals before switching back to the original primary WAC. This prevents frequent link switchovers caused by unstable links.

by Effie at Apr 29, 2025, 11:38 PM

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Gerald

2 months ago

I remember it being 5 intervals in some setups.

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Pamella

2 months ago

I thought it was 15 intervals, but 10 makes sense too.

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Letha

2 months ago

It's 10 Echo intervals for the switchback.

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Clay

3 months ago

Totally agree, 10 is the right answer!

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Kandis

3 months ago

Wait, are we sure about that? Seems off to me.

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Sue

3 months ago

I have a vague recollection that it could be 5 intervals, but that seems too low for a switchback situation.

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Ettie

3 months ago

I’m pretty confident it’s 20 intervals, but I might be confusing it with another scenario we covered.

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Abel

4 months ago

I remember practicing a similar question, and I feel like it was 15 intervals, but I could be mixing it up.

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Barb

4 months ago

I think the AP waits for 10 Echo intervals before switching back, but I'm not entirely sure.

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Moon

4 months ago

This seems like a tricky question. I'll need to think through the networking concepts step-by-step to determine the right number of Echo intervals the AP waits.

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Kimbery

4 months ago

I'm confident I know the answer to this one. The question states the switchback is triggered, so the AP must wait a certain number of Echo intervals before actually switching back to the original primary WAC.

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Galen

4 months ago

Okay, so the key information is that the AP detects the original active link has higher priority and triggers a switchback. I'm guessing the question is asking how long the AP waits before switching back.

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Breana

5 months ago

Hmm, I'm a bit unsure about the details of how the active/standby link switchover mode works in this scenario. I'll need to re-read the question carefully.

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Queen

5 months ago

This sounds like a pretty straightforward networking question. I think I can work through this step-by-step.

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Jennie

8 months ago

This question is a real Echo chamber, if you ask me. But I'm sure the answer is in there somewhere, we just have to listen closely.

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Eliz

7 months ago

You're right, it is B) 10. Good job!

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Eugene

7 months ago

Actually, I'm pretty sure it's B) 10.

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Joni

8 months ago

No, I believe it's C) 15.

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Albert

8 months ago

I think the answer is A) 20.

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Audrie

9 months ago

I bet the right answer is 20 Echo intervals. The AP wants to be really, really sure the primary link is solid before switching back. Better safe than sorry, am I right?

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Regenia

8 months ago

I would go with option A) 20 as well, better safe than sorry when it comes to network stability.

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Ty

8 months ago

I agree, it's important to ensure the primary link is stable before making the switch.

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Leonard

8 months ago

I think you're right, the AP probably wants to be extra cautious before switching back.

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Marva

9 months ago

Wait, what's an Echo interval? Is that like a ping or something? I'm going to have to look that up before I can answer this question.

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Bettye

8 months ago

User2: Yeah, that makes sense. So, how many Echo intervals does the AP wait for before switching back?

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Chantay

8 months ago

User1: I think an Echo interval is like a heartbeat signal to check if the link is still active.

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Thaddeus

9 months ago

I think the answer is C) 15 because it's a middle ground between the options.

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Eden

9 months ago

But the AP waits for a longer period before switching back, so it must be A) 20.

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Abraham

9 months ago

I disagree, I believe the answer is B) 10.

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Eden

10 months ago

I think the answer is A) 20.

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Danica

10 months ago

5 Echo intervals? That's way too fast! The AP needs to make sure the link is truly stable before switching back, otherwise it might just end up going back and forth constantly.

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Kimbery

8 months ago

User 3: Maybe a longer wait time would be more reliable for the switchback.

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Susy

9 months ago

User 2: I agree, the AP needs to ensure the link is stable before switching back.

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Billye

9 months ago

User 1: 5 Echo intervals seems too fast for a switchback.

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Carylon

10 months ago

Hmm, I'm not so sure. 15 Echo intervals sounds more plausible to me. The AP probably wants to give the link a bit more time to stabilize before switching back.

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Kaitlyn

8 months ago

Hmm, I'm not so sure. 15 Echo intervals sounds more plausible to me. The AP probably wants to give the link a bit more time to stabilize before switching back.

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Edelmira

9 months ago

C) 15

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Jessenia

9 months ago

B) 10

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Nickie

9 months ago

A) 20

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Craig

10 months ago

I think the answer is 10 Echo intervals. The question clearly states that the AP waits for the original active link to recover, and 10 seems like a reasonable interval for that.

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