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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Which of the following correctly describes how a unidirectional amplification stage works?

A) * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals are also boosted by the ingress amplifier.
B) * Incoming optical signals pass through the ingress amplifier but are not boosted.
* Outgoing optical signals are boosted by the ingress amplifier.
C) * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals pass through the ingress amplifier but are not boosted.
D) * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals do not pass through the ingress amplifier.

2. Which of the following commands is used to retrieve the total output power level?

A) show interface am2125a 1/6/lineout detail
B) show interface am2125a 1/6/lineout
C) show interface am212 5a 1/6/lineout pm
D) show interface am2125a 1/6/lineout wavekey

3. Which of the following statements best describes the Forward Error Correction (FEC) technique?

A) FEC enables errors to be detected and corrected without retransmission. This technique is effective only above a specified OSNR threshold.
B) FEC enables errors to be detected and data to be retransmitted. This technique is effective only above a specified OSNR threshold.
C) FEC enables errors to be detected and corrected without retransmission. This technique is effective only below a specified OSNR threshold.
D) FEC enables errors to be detected and data to be retransmitted. This technique is effective only below a specified OSNR threshold.

4. What is the default severity level for a Threshold Crossing Alert (TCA) alarm?

A) Warning
B) Critical
C) Major
D) Minor

Solutions: