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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Which of the following CLI commands displays a list of the expected and measured output power for the channels whose admin state is up?

A) show wavekey wtsource power
B) show wavekey wtsource
C) config wavekey power detail
D) config wavekey summary

2. Which of the following issues can cause a "Loss too low" message to be displayed after a power adjustment has been provided?

A) A defective WSS unit
B) A dirty fiber connector
C) Unstable optical power levels
D) An incorrect EPT network design

3. Suppose a channel-related alarm is reported on an 1830 PSS node, and is related to a possible Wave Keys clock source issue. What is the recommended order for the following troubleshooting steps?

A) 1. Retrieve the channel power trace.
2. Determine the active clock reference source.
3. Switch to alternate clock source (PF).
4. Replace the suspect PF.
B) 1. Replace the suspect PF.
2. Retrieve the channel power trace.
3. Switch to alternate clock source (PF).
4. Determine the active clock reference source.
C) 1. Retrieve the channel power trace.
2. Replace the suspect PF.
3. Determine the active clock reference source.
4. Switch to alternate clock source (PF).
D) 1. Determine the active clock reference source.
2. Replace the suspect PF.
3. Retrieve the channel power trace.
4. Switch to alternate clock source (PF).

4. Which of the following statements correctly describes where power adjustments can be performed?

A) In unidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
B) In bidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
C) When Raman pumps are used, both ingress and egress power adjustments are performed against the Raman pump directly.
D) In bidirectional configurations, ingress power adjustments are performed against the ingress amplifiers, while egress power adjustments are performed against the egress amplifiers.

Solutions: