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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My

20 days ago

Right! B also makes sense. WDM is easy to upgrade.

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Mollie

25 days ago

But A and D are definitely true benefits of WDM.

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Reynalda

1 month ago

Agreed! SDH has its own advantages.

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Brett

1 month ago

I think C is the answer. WDM isn't a gold replacement for SDH.

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Renea

1 month ago

B is a big plus for WDM, no doubt!

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Laquita

2 months ago

A and D are solid advantages, though!

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Sabrina

2 months ago

Wait, are we sure about that?

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Emmanuel

2 months ago

Totally agree, WDM is not a gold replacement!

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Dick

2 months ago

C is definitely not an advantage.

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Ardella

2 months ago

I'm just here for the gold replacement. Where do I sign up?

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Dorothy

2 months ago

B) Easy to upgrade and maximize protection for existing investments - now that's a good one.

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Trina

3 months ago

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

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Dominga

3 months ago

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

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Detra

3 months ago

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

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Laurel

4 months 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

4 months 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

4 months 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

4 months 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

4 months 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

4 months 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

5 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

5 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

5 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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Amie

15 days ago

I think C is the odd one out. WDM isn't really a gold replacement for SDH.

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