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Huawei H31-311_V2.5 Exam - Topic 2 Question 79 Discussion

The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.
A) is higher than
C) Equal
B) Below

Huawei H31-311_V2.5 Exam - Topic 2 Question 79 Discussion

Actual exam question for Huawei's H31-311_V2.5 exam
Question #: 79
Topic #: 2
[All H31-311_V2.5 Questions]

The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.

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Suggested Answer: A

by Major at Jan 27, 2026, 11:45 AM

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Jesus
11 hours ago
Yes! It ensures total internal reflection.
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Arthur
6 days ago
n1 must be greater than n2, right?
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Chaya
11 days ago
Agreed! The refractive index is crucial.
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Twila
16 days ago
I think this question is tricky.
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Cherry
2 months ago
Yep, n1 must be greater than n2 for sure!
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Lettie
2 months ago
I thought there were more factors involved in signal transmission.
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Aliza
2 months ago
Wait, is that really the only condition? Seems too simple.
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Geoffrey
3 months ago
Totally agree, that's how total internal reflection works!
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Melda
3 months ago
The core's refractive index has to be higher than the cladding's, right?
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Jade
3 months ago
Haha, I bet the person who wrote this question is an optical engineer with a sense of humor. "The Q of the cladding refractive Mo n2" - classic!
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Reuben
3 months ago
Is this a trick question? I thought the refractive index just had to be different, not necessarily greater.
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Shawnee
3 months ago
Ah, the good old total internal reflection. Gotta love those fiber optics!
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Marg
3 months ago
Wait, what's the difference between n1 and n2 again? I need to brush up on my optics.
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Dominque
4 months ago
The refractive index of the fiber core must be greater than the refractive index of the cladding. Duh!
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Kayleigh
4 months ago
This sounds familiar! I think we did a similar question where we had to calculate the critical angle based on the refractive indices.
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Wilford
4 months ago
I feel like we discussed the importance of the refractive indices in class, but I can't recall the specific values or conditions we went over.
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Lashaun
5 months ago
I remember practicing a question about total internal reflection, and I think it was related to how n1 must be greater than n2 for effective signal transmission.
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Jolanda
5 months ago
I think the refractive index of the core has to be greater than that of the cladding, but I'm not entirely sure about the exact relationship.
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Kristel
5 months ago
I'm not sure I fully understand the relationship they're looking for. Maybe I should review my notes on optical fiber principles before attempting this question.
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Carla
5 months ago
I got this! The refractive index of the core has to be greater than the refractive index of the cladding. That way, the light can be confined and transmitted through the fiber.
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Elin
5 months ago
Hmm, I think the key here is that the core refractive index needs to be higher than the cladding refractive index. That's a necessary condition for total internal reflection and guiding the optical signal.
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Brendan
6 months ago
Wait, what does it mean for the core refractive index to be the "Q" of the cladding refractive index? I'm a bit confused by that wording.
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Herminia
6 months ago
Okay, this seems pretty straightforward. I just need to find the relationship between the refractive indices of the core and cladding.
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