Huawei H31-311_V2.5 Exam - Topic 5 Question 78 Discussion

Actual exam question for Huawei's H31-311_V2.5 exam

Question #: 78
Topic #: 5

[All H31-311_V2.5 Questions]

Which of the following is not the advantage of WDM?

ALarge capacity and transparent data transfer

BEasy to upgrade and maximize protection for existing investments

Cgold replacement for SDH equipment

DFuture compatible with all optical switching networks

Show Suggested Answer

Suggested Answer: C

by Tonja at Jan 05, 2026, 05:16 AM

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Trina

3 days ago

A) Large capacity and transparent data transfer - that's the obvious answer.

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Dominga

8 days ago

D) Future compatible with all optical switching networks? Sounds like a stretch.

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Detra

13 days ago

C) gold replacement for SDH equipment? Really? That's a new one.

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Laurel

18 days ago

I thought WDM was supposed to be a good upgrade option, so B seems like it could be an advantage.

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Yen

24 days ago

I feel like we had a practice question that mentioned WDM's compatibility with future networks, so maybe D is not the right choice.

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Adelle

29 days ago

I remember discussing how WDM has a lot of advantages, but I can't recall if all of them were listed here.

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Ronnie

1 month ago

I think the answer might be C, but I'm not entirely sure if it's considered a "gold replacement" for SDH.

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Chantell

1 month ago

Alright, let me break this down. Large capacity, easy to upgrade, and future-compatible - those all sound like clear advantages. The odd one out has to be C.

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Alease

1 month ago

Wait, what's WDM again? I'm a little fuzzy on the details. I'll have to review my notes before answering this.

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Dottie

2 months ago

I'm pretty confident about this one. The answer has to be C - gold replacement for SDH equipment. That doesn't sound like an actual advantage of WDM.

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Lino

2 months ago

Okay, let me see. I know WDM increases capacity, but is it really future-compatible with all optical switching networks? That seems like a stretch.

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Dona

2 months ago

Hmm, this one's tricky. I'll need to think through the pros and cons of WDM to figure out which one isn't an advantage.

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