Huawei Exam H31-311 Topic 4 Question 84 Discussion

Actual exam question for Huawei's H31-311 exam

Question #: 84
Topic #: 4

[All H31-311 Questions]

Which of the following are the service board types of MSTP devices? (Multiple Choice)

AInterface board

BService processing board

CService processing board with interfaces

DAuxiliary board

Show Suggested Answer

Suggested Answer: A, C

by Helga at Apr 13, 2024, 02:29 PM

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Ethan

1 years ago

I would go with 1510 nm as it is also a possible center wavelength for pump sources.

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Hyman

1 years ago

I agree with User1, 980 nm seems like a common wavelength for pump sources in an EDFA.

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France

1 years ago

I believe it can also be 1480 nm as the center wavelength.

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Kyoko

1 years ago

I think the center wavelengths of the pump sources in an EDFA can be 980 nm.

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Glen

1 years ago

I am leaning towards 1310 nm as the center wavelength for the pump sources in an EDFA.

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Dolores

1 years ago

I think both 980 nm and 1480 nm can be center wavelengths for the pump sources in an EDFA.

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Aliza

1 years ago

I disagree, I believe it can also be 1480 nm.

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Nana

1 years ago

I think the center wavelengths of the pump sources in an EDFA can be 980 nm.

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Ocie

1 years ago

D) 1310 nm

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Ocie

1 years ago

C) 1480 nm

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Ocie

1 years ago

B) 1510 nm

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Ocie

1 years ago

A) 980 nm

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Malinda

1 years ago

Ah, I see what you mean. But what about 1310 nm? Wouldn't that be a bit too short to effectively pump erbium?

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Jerry

1 years ago

You know, I think you're right. 1510 nm seems a bit high. I'd say the best options are 980 nm and 1480 nm.

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Sherly

1 years ago

Hmm, I'm not so sure about 1510 nm. Isn't that a bit too long for efficient pumping of erbium?

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Emiko

1 years ago

Yeah, that's a good point. I remember from my studies that erbium has absorption peaks around 980 nm and 1480 nm, so those would be the logical choices.

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Kerry

1 years ago

Okay, let's think this through. I'm pretty sure the pump sources need to be in the wavelength range where erbium ions can be excited, right?

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Sharen

1 years ago

Hmm, this is a tricky one. I'm not too sure about the center wavelengths of EDFA pump sources. But I'm going to give it my best shot.

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