Nokia Exam 4A0-205 Topic 5 Question 39 Discussion

Actual exam question for Nokia's 4A0-205 exam

Question #: 39
Topic #: 5

What is the function of a pre-amplifier in an optical network?

AThrough the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.

BThrough the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.

CThrough the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.

DThrough the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

Show Suggested Answer

Suggested Answer: B

A pre-amplifier is an optical amplifier that is used to boost the power of the received optical signal before it is detected by the receiver in an optical communication system. This is done to overcome the loss of power that occurs as the signal travels through the optical fiber and to ensure that the receiver can detect the signal. The pre-amplification stage is typically located close to the receiver in order to minimize the distance that the signal has to travel between the amplifier and the receiver, which helps to reduce the noise and distortion in the signal.

by Wade at Sep 17, 2024, 02:18 PM

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Alva

2 months ago

I don't know, man. I'm just hoping the real answer isn't 'all of the above' - that would be way too easy, right?

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Ruby

1 months ago

D) Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

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Rory

1 months ago

B) Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.

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Aleisha

2 months ago

A) Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.

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Marleen

2 months ago

You know, I bet the real answer is C - the pre-amplifier amplifies the signal at both the receiver and transmitter sides. That's just how these optical networks work.

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Rickie

2 months ago

Ha, you guys are overthinking it. Clearly the answer is B - the pre-amplifier amplifies the signal at the transmitter side before it's sent over the line.

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Asha

2 months ago

Yeah, it's important to make sure the signal is strong enough for the line span.

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Carmen

2 months ago

That makes sense, it would help boost the signal before sending it out.

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Lorenza

2 months ago

I think the pre-amplifier is used to amplify the signal at the transmitter side.

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Chandra

2 months ago

I think the pre-amplifier amplifies the optical signal both at the receiver side and at the transmitter side to ensure signal quality.

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Kris

2 months ago

I believe the pre-amplifier amplifies the optical signal at the transmitter side before it is sent to the line span.

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Robt

3 months ago

I think the function of a pre-amplifier is to amplify the optical signal at the receiver side.

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Dorthy

3 months ago

Hmm, I'm not so sure. I think it might be D - the pre-amplifier amplifies the signal within the node to recover internal losses.

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Felix

2 months ago

I'm not sure, but I think it's B - the pre-amplifier amplifies the signal at the transmitter side.

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Adolph

2 months ago

I believe it's D - the pre-amplifier amplifies the signal within the node to recover internal losses.

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Rozella

2 months ago

I think it's A - the pre-amplifier amplifies the signal at the receiver side.

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Shay

3 months ago

I'm pretty sure the correct answer is A. The pre-amplifier boosts the signal at the receiver side after it's traveled along the fiber, right?

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Lorita

3 months ago

Yes, that's correct. It helps boost the signal after it has traveled along the fiber.

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Bettye

3 months ago

I think you're right, the pre-amplifier amplifies the optical signal at the receiver side.

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