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

2. Suppose a unidirectional amplifier has been plugged into slot 1/13. Which command should the user enter to retrieve the OSC pluggable module type?

A) show interface 1/13/OSC detail
B) show interface 1/13/OSC
C) show interface 1/13/OSCSFP detail
D) show interface 1/13/OSCSFP

3. Consider the exhibit. Given the following power readings, what is the calculated span loss from Node A to Node B?

A) 1.5
B) 8.0
C) 2.5
D) 11.5

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: