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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Audrie

2 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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Marva

9 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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Thaddeus

11 days ago

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

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Eden

18 days ago

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

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Abraham

24 days 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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Susy

8 days ago

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

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Billye

11 days ago

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

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Carylon

1 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

8 days ago

C) 15

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Jessenia

11 days ago

B) 10

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Nickie

27 days ago

A) 20

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Craig

1 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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