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

2. Which of the following Performance Measurement (PM) type is NOT typically retrieved at an Optical Transponder (OT) line interface?

A) Digital Wrapper (DW)
B) Ethernet collision counters
C) Forward Error Correction - Errors Counted (FEC-EC)
D) Optical Power Received (OPR)

3. Consider the exhibit. A single directional fiber cut is occurring between two amplifiers in unidirectional configuration with Raman pump.
Multiple services are crossing the affected span.
Which node(s) will report an Incoming Payload LOS" alarm?

A) No node, as a Raman pump is used in Node A.
B) Node C only.
C) Both Node A and Node C
D) Neither Node A nor Node C.

4. Consider the exhibit.

Which type of loopback is applied?

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

Solutions: