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

Limited Time Offer

25%

Off

Get Premium 4A0-205 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Alva

19 days 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?

upvoted 0 times

Aleisha

8 days ago

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

upvoted 0 times

...

Marleen

22 days 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.

upvoted 0 times

...

Rickie

23 days 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.

upvoted 0 times

Asha

8 days ago

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

upvoted 0 times

...

Carmen

10 days ago

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

upvoted 0 times

...

Lorenza

16 days ago

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

upvoted 0 times

...

Chandra

27 days ago

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

upvoted 0 times

...

Kris

30 days ago

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

upvoted 0 times

...

Robt

1 months ago

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

upvoted 0 times

...

Dorthy

1 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.

upvoted 0 times

Felix

19 days ago

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

upvoted 0 times

...

Adolph

25 days ago

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

upvoted 0 times

...

Rozella

30 days ago

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

upvoted 0 times

...

Shay

2 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?

upvoted 0 times

Lorita

1 months ago

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

upvoted 0 times

...

Bettye

1 months ago

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

upvoted 0 times

...