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Nokia 4A0-255 Exam - Topic 8 Question 54 Discussion

Actual exam question for Nokia's 4A0-255 exam

Question #: 54
Topic #: 8

[All 4A0-255 Questions]

Consider a signal at 100G PDM-QSK. Which of the following statements is true?

AIt supports more bits per symbol per polarization than 8QAM

BIt has the same Gbaud rate as 100G 8QAM.

CEach symbol supported 2 bits per polarization.

DThe Gbaud rate is 50.

Show Suggested Answer

Suggested Answer: A

by Harrison at Sep 17, 2024, 09:16 PM

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Levi

6 months ago

Wait, are we sure about A? That sounds too good to be true!

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Martha

6 months ago

D sounds right, Gbaud rate is 50 for 100G.

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Johnna

7 months ago

C seems off, isn’t it more than 2 bits?

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Page

7 months ago

I think B is correct too, same Gbaud rate.

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Sheridan

7 months ago

A is definitely true, more bits per symbol!

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Xochitl

7 months ago

I believe the Gbaud rate being 50 is incorrect since 100G would typically imply a higher rate, but I need to review that concept again.

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Corrinne

7 months ago

I vaguely recall that each symbol in PDM-QSK could represent more than 2 bits, but I can't remember the exact details.

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Annabelle

8 months ago

I think the Gbaud rate for 100G 8QAM is also 100, so that might mean option B is true, but I need to double-check that.

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Mike

8 months ago

I remember studying that PDM-QSK can support higher modulation formats, but I'm not sure if it really exceeds 8QAM in bits per symbol.

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Elise

8 months ago

This question is testing my knowledge of advanced modulation formats. I'm confident I can work through this by carefully considering the information provided about PDM-QSK and 8QAM.

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Gearldine

8 months ago

I'm a bit confused on the differences between these modulation formats. I'll need to review my notes to make sure I understand the key characteristics before selecting an answer.

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Alonzo

8 months ago

Alright, I've got this. PDM-QSK supports more bits per symbol per polarization than 8QAM, so I'm going to go with option A.

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Nobuko

8 months ago

Okay, let me see here. PDM-QSK is a modulation format, and it's operating at 100G. I'll need to compare that to the characteristics of 8QAM to figure out which statement is correct.

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Simona

8 months ago

Hmm, this question seems a bit tricky. I'll need to think through the differences between PDM-QSK and 8QAM to determine which statement is true.

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Allene

8 months ago

This looks like it could be an issue with the VRF instance configuration. I'll check to see if there's an existing VRF instance on the interface and make sure I'm not trying to configure VRF Selection on top of that.

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Whitley

2 years ago

Haha, I'm going with option D just because it's the 'speed limit' for this signal. Who doesn't love a good 50 Gbaud rate?

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Velda

2 years ago

User 3: I'm going with option D, the Gbaud rate is 50, that's the 'speed limit' for this signal.

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Laticia

2 years ago

User 2: I'm not sure about that, I believe option C is the right answer, each symbol supports 2 bits per polarization.

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Cherelle

2 years ago

I think option A is correct, it supports more bits per symbol per polarization than 8QAM.

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Pete

2 years ago

I'm not sure, but I think the Gbaud rate is 50, so the answer might be D).

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Kiera

2 years ago

I disagree, I believe the correct answer is C) Each symbol supported 2 bits per polarization.

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Janae

2 years ago

I think the answer is A) It supports more bits per symbol per polarization than 8QAM.

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Colton

2 years ago

Option A seems plausible to me. PDM-QSK should be able to support more bits per symbol per polarization than 8QAM.

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Evangelina

2 years ago

Yeah, it seems like PDM-QSK is more efficient in terms of bits per symbol per polarization.

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Rosita

2 years ago

I agree, it makes sense that PDM-QSK would have that capability.

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Vanda

2 years ago

I think option A is correct. PDM-QSK should support more bits per symbol per polarization than 8QAM.

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Ming

2 years ago

I think option B is the correct answer. The Gbaud rate for both 100G 8QAM and PDM-QSK is the same, which is 50 Gbaud.

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Alberta

2 years ago

Yes, it seems like option B is the right choice.

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Maile

2 years ago

So, option B is the correct answer then.

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Verlene

2 years ago

I agree, both 100G 8QAM and PDM-QSK have a Gbaud rate of 50.

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Chantell

2 years ago

I think option B is the correct answer.

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