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PDF 4A0-255 Study Guide

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Total 40 questions
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Nokia Advanced Optical Network Design Questions and Answers

Question 5

Consider two EDFA amplifiers in cascade. Each EDFA has an average input signal power of 10 mW and an average noise power of 1 mW. What is the OSNR of the system at the receiver.

Options:

A.

20 dB

B.

10 dB

C.

7 dB

D.

5 bB

Question 6

Which of the following statements about the Decision (HDEFC) decoding and soft decision FEC (SDFEC) decoding is FALSE?

Options:

A.

HDFEC injects less latency into the decoding process than SDFEC.

B.

HDFEC provides a higher coding gain than SDEFC

C.

HDFEC uses fewer thresholds than SDEFC.

D.

HDFEC discards bits earlier in the decoding process than SDEFC.

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Total 40 questions
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