Huawei Exam H12-351_V1.0 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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Jennie

10 days 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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Audrie

16 days 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

6 days 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

7 days ago

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

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Leonard

10 days ago

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

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Marva

23 days 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

5 days ago

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

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Chantay

10 days 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

24 days ago

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

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Eden

1 months ago

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

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Abraham

1 months ago

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

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Eden

1 months ago

I think the answer is A) 20.

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Danica

1 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

10 days ago

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

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Susy

22 days ago

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

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Billye

25 days ago

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

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Carylon

2 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

12 days 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

21 days ago

C) 15

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Jessenia

25 days ago

B) 10

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Nickie

1 months ago

A) 20

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Craig

2 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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