Question 1

In which window(s) does the attenuation reach its minimum peak?

Options :

A : First window (850 nm)

B : Second window (1300 nm)

C : Third window (1550 nm)

D : Both first and second windows

Answer: D

Question 2

WDM allows transmission systems to:

Options :

A : Transport multiple signals transparently, onto several wavelengths, all together over one single fiber

B : Increase the bit rate of each client signal by spreading it over multiple wavelengths

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

Answer: A

Question 3

What is the main function of an optical amplifier?

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

Answer: B

Question 4

Which of the following statements about Data Communication Network (DCN) is FALSE?

Options :

A : DCN is a data network carrying the management and/or signaling traffic of a telecommunication network.

B : Out of Band DCN is the part of a DCN that is not implemented by the managed network elements.

C : In Band DCN is the part of a DCN that is not implemented by the managed network elements.

D : In Band DCN is the part of a DCN that is implemented by the managed network elements.

Answer: C

Question 5

Which of the following statements best describes the general configuration of a switched WDM?

Options :

A : A master PSS-24x that hosts a PSS-32 as a sub-shelf.

B : A master PSS-8 that hosts a PSS-12x/24x as a sub-shelf.

C : A master WDM node that hosts PSS-8x/12x/24x as a sub-shelf or vice versa.

D : A master PSS-8x that hosts a PSS-16x as a sub-shelf.

Answer: C

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