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4A0-205 Exam - Question 10

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

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

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

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

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

Show Answer

Correct Answer: A

A pre-amplifier in an optical network is used to amplify the optical signal at the receiver side after it has traveled through the fiber from another node. This helps in improving the signal quality and ensures it is strong enough to be correctly processed by the receiving equipment.

Discussion

5 comments

kayus2519

Apr 14, 2023

Answer A: Pre-amplifier is an amplifier installed at the receiver end,Booster is an amplifier installed at the transmitter's side while the in-line amplifier(ILA) is amplifier node that has no mux/dem installed .

DJ_Opt

Aug 23, 2023

Agree it should be A

fa0300eOption: A

Sep 17, 2024

A is correct

CHOK0601Option: A

Dec 2, 2024

at the receiver side

inmankOption: A

Mar 22, 2025

A is correct