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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

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

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

2. Consider the exhibit.

Which type of loopback is applied?

A) Line port terminal Ioopback
B) Client port facility loopback
C) Line port facility Ioopback
D) Client port terminal Ioopback

3. When troubleshooting possible generic fiber cuts, the recommended first step is to: 1. Review alarms at nodes where power loss occurs.
What is the next recommended step?

A) Monitor amplifier total power in/out to isolate the direction of a possible cut.
B) Review EPT design for calculated span loss.
C) Review PM data to determine if the problem is intermittent.
D) Perform network power traces to attempt to determine the point of power loss.

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

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

Solutions: