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Nokia Exam 4A0-205 Topic 4 Question 43 Discussion

Actual exam question for Nokia's 4A0-205 exam
Question #: 43
Topic #: 4
[All 4A0-205 Questions]

What is the definition of OSNR?

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Suggested Answer: C

The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth. This is also known as the signal-to-noise ratio (SNR), and it is a measure of how much signal is present in the optical signal compared to the noise, usually expressed in decibels (dB).


Contribute your Thoughts:

Angella
1 months ago
This question is a bit tricky, but I think option C captures the essence of OSNR the best. Gotta love those technical terms!
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Johnna
1 days ago
I'm not sure, but I think option D might also be a good definition of OSNR.
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Stacey
7 days ago
I agree, option C seems to be the most accurate description of OSNR.
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Frank
13 days ago
Yeah, OSNR can be a bit confusing, but once you understand the concept, it's not so bad.
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Alfreda
16 days ago
I think option C is correct too. It's all about that ratio between signal power and noise power.
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Reena
19 days ago
I think option C is correct, it defines OSNR as the ratio between average optical signal power and average optical noise power.
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Junita
1 months ago
Haha, the OSNR is like the SNR but for optics, right? I'd go with the answer that mentions both signal and noise power.
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Chau
5 days ago
User 4: So, the OSNR is about the power ratio over a specific spectral bandwidth.
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Josephine
7 days ago
User 3: I agree, that answer includes both signal and noise power.
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Ben
10 days ago
User 2: I think it's the ratio between transmitted and received optical power.
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Maddie
12 days ago
User 1: Yeah, OSNR is like SNR but for optics.
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Garry
2 months ago
Hmm, that makes sense. I see your point.
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Jonell
2 months ago
I disagree, I believe it's option D because it includes noise.
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Shayne
2 months ago
I'm going with option D. The OSNR is the ratio of the total optical signal power, including noise, to the optical noise power.
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Willodean
21 days ago
I'm not sure, but I think option C might be the definition of OSNR. It mentions average signal and noise power.
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Barney
21 days ago
I agree with option D as well. It's important to include noise in the calculation.
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Patrick
24 days ago
I believe option A is the right definition. It considers the transmitted and received optical power.
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Daniel
26 days ago
I think option D is correct too. It includes both signal and noise power.
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Garry
2 months ago
I think the definition of OSNR is option A.
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Amber
2 months ago
Hmm, I think option C is the best one. The OSNR is about the ratio of the average signal power to the average noise power over a specific bandwidth.
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Johna
2 months ago
The OSNR is definitely the ratio between the optical signal power and the optical noise power. That's the most accurate definition in my opinion.
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Lanie
1 months ago
I see, I thought the OSNR was the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
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India
1 months ago
Actually, the OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
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Gail
1 months ago
I disagree, I think the OSNR is the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
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Eveline
2 months ago
No, I believe the OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
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Yolando
2 months ago
I think the OSNR is the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.
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Nicolette
2 months ago
Actually, the OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
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Nobuko
2 months ago
No, I believe the OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
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Tamra
2 months ago
I think the OSNR is the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.
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