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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. On a bidirectional optical amplifier configuration, which of the following are Wavelength Tracker detection points?

A) SIG interface only.
B) LINE and SIG interfaces.
C) An optical amplifier has no Wavelength Tracker detection points.
D) LINEOUT and SIGOUT interfaces.

2. What is the typical severity level of a "Loss of Signal" (LOS) alarm?

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

3. Consider the exhibit. A single directional fiber cut is occurring between two amplifiers in bidirectional configuration. Which node(s) will report a "LD Input LOS" alarm?

A) Node B only
B) Node A and Node B
C) Node C only
D) Node A only

4. Which of the following is NOT a characteristic of an Optical Supervisory Channel Loss of Signal (OSC LOS) issue, in case that no "LD Input LOS" alarms are raised against the involved amplifiers?

A) A "Data Link Down" alarm is raised on the adjacent node.
B) Traffic does not pass between the local and adjacent nodes.
C) An "Incoming SUPVY LOS" alarm is raised on the local node.
D) A "Power Adjustment Required" alarm is eventually raised on the local node.

Solutions: