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4A0-205 Exam Dumps : Nokia Optical Networking Fundamentals

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Nokia Optical Networking Fundamentals Questions and Answers

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

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Question 2

Which of the following statements about coherent transmission in WDM technology is TRUE?

Options:

A.

Coherent systems need carrier phase information at the receiver.

B.

Only multi-mode fibers can be used with coherent transmissions.

C.

The channel allocation is flexible, according to the channel size of the signals.

D.

At each receiver, a dispersion compensation unit is often necessary, depending on the fiber length.

Question 3

Which of the following is an example of optical protection mechanism?

Options:

A.

Optical regeneration (e.g., back-to-back regeneration)

B.

OSNCP (e.g., via Y-cable or OPS card)

C.

GMPLS-enabled SBR

D.

GR and SBR combined