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Nokia 4A0-205 Exam - Topic 5 Question 21 Discussion

WDM allows transmission systems to:
B) Increase the bit rate of each client signal by spreading it over multiple wavelengths
A) Transport multiple signals transparently, onto several wavelengths, all together over one single fiber
C) Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission
D) Allocate different signals to different time slots

Nokia 4A0-205 Exam - Topic 5 Question 21 Discussion

Actual exam question for Nokia's 4A0-205 exam
Question #: 21
Topic #: 5
[All 4A0-205 Questions]

WDM allows transmission systems to:

Show Suggested Answer Hide Answer
Suggested Answer: B

A trail is a transparent transport of a client signal. A trail is a physical link between two points in an optical network, allowing for the transport of a client signal from one point to the other. It is a low-order signal, such as a 10G Ethernet or a Fibre Channel signal, encapsulated into a high-order container, such as a 40G or 100G signal. This allows for the transport of the client signal over longer distances, increasing the power budget of the optical link.


by Beatriz at Feb 11, 2024, 12:55 PM

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Leana
8 months ago
Nope, it doesn't allocate time slots, that's TDM's job!
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Jose
8 months ago
I think it also helps with bandwidth management.
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Una
8 months ago
Wait, can it really handle that many signals without issues?
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Barbra
8 months ago
Totally agree, it's super efficient!
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Antonio
9 months ago
WDM lets us send multiple signals over one fiber.
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Chantell
9 months ago
I’m confused about option C; I thought that was more related to load balancing rather than what WDM actually does.
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Richelle
9 months ago
I feel like option A makes the most sense since WDM uses different wavelengths to carry multiple signals together.
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Tori
9 months ago
I remember practicing a question that mentioned increasing bit rates, but I can't recall if that's what WDM does specifically.
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Katy
9 months ago
I think WDM is all about transporting multiple signals over one fiber, but I'm not entirely sure if that's the main focus.
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Raylene
9 months ago
Wait, I'm a little confused. Isn't WDM also about increasing the overall bit rate by spreading a single signal over multiple wavelengths? I'm not sure if that's what option B is saying, but I'll need to double-check that.
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Lorean
10 months ago
Okay, I've got this. WDM allows you to transmit multiple signals simultaneously over a single fiber by using different wavelengths. That's what option A is describing, so I'll go with that.
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Curt
10 months ago
This seems like a straightforward question about the capabilities of WDM. I'll focus on understanding the key differences between the answer choices and pick the one that best describes how WDM works.
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Fletcher
10 months ago
Hmm, I'm a bit unsure about this one. I know WDM has something to do with transmitting multiple signals over a single fiber, but I'm not sure about the specifics. I'll need to think this through carefully.
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Venita
10 months ago
This question seems straightforward, I'm pretty confident I can identify the two correct features of Versa Secure SD-WAN.
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Delpha
10 months ago
Okay, let's see. The question is asking about the maximum number of printers that can print virus alerts, so I'll need to consider the different options given.
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Angella
1 year ago
A all the way! Though I have to say, the other options are like trying to fit a square peg in a round hole. Whoever came up with those clearly doesn't know their networking tech.
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Huey
1 year ago
User 2: A all the way! Though I have to say, the other options are like trying to fit a square peg in a round hole. Whoever came up with those clearly doesn't know their networking tech.
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Marylou
1 year ago
User 1: A) Transport multiple signals transparently, onto several wavelengths, all together over one single fiber
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Lauran
1 year ago
A is the way to go. Though I do wonder if the person who wrote this question has ever actually used WDM equipment. Probably just a textbook nerd.
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Pedro
1 year ago
C) Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission
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Catina
1 year ago
B) Increase the bit rate of each client signal by spreading it over multiple wavelengths
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Janessa
1 year ago
A) Transport multiple signals transparently, onto several wavelengths, all together over one single fiber
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Denae
1 year ago
Hmm, D sounds like it's describing TDM, not WDM. I'm sticking with A as the correct answer.
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Josephine
1 year ago
User 3: A makes sense, it allows multiple signals on different wavelengths over one fiber.
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Veronika
1 year ago
User 2: I agree, A seems to be the correct choice for WDM.
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Marge
1 year ago
User 1: I think D is not the right answer, it sounds more like TDM.
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Donette
1 year ago
I was leaning towards Option B, but now that I think about it, that's not really what WDM is for. Gotta go with A on this one.
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Antonio
1 year ago
User 2: Yeah, I agree. WDM allows transmission systems to transport multiple signals transparently, onto several wavelengths, all together over one single fiber.
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Tonja
1 year ago
User 1: I was leaning towards Option B, but now that I think about it, that's not really what WDM is for. Gotta go with A on this one.
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Stefania
1 year ago
Option A seems like the most comprehensive answer to me. Transmitting multiple signals over a single fiber is exactly what WDM is all about.
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Glenna
1 year ago
I think the answer is C. Sharing a signal among multiple fibers increases reliability.
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Gladys
1 year ago
I disagree, I believe the answer is B. WDM increases the bit rate by spreading signals over multiple wavelengths.
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Jean
1 year ago
I think the answer is A, because WDM allows multiple signals to be transported over one fiber.
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