Nokia Certified Network Professional – IP/MPLS Services — Question 36

What is the main function of an optical amplifier?

Answer options

• A. Demodulating the incoming signal
• B. Compensating for optical power attenuation
• C. Compensating for chromatic dispersion
• D. Compensating for attenuation through an optical-electrical-optical amplification

Correct answer: B

Explanation

The correct answer is B because the main purpose of an optical amplifier is to amplify the optical signals and counteract the loss of power as the signal travels through the fiber. Options A, C, and D describe other functions that are not the primary role of an optical amplifier.