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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Which of the following statements best describes the output of the command: show xc 1?

A) A list of boards that this cross-connection passes through on the local node, along with administrative/operational states, expected power levels, and measured power levels.
B) A list of cross-connections, including A-end, Z-end, frequency, ID number, OCH trail name, and administrative/operational states.
C) OCH trail name, ITU channel, administrative/operational states, protection states, and Wave Keys for both directions.
D) A list of all boards on all nodes that this cross-connection passes through, along with expected power levels, measured power levels, and allowed power deviations.

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

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

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 commands is used to retrieve the total output power level?

A) show interface am212 5a 1/6/lineout pm
B) show interface am2125a 1/6/lineout
C) show interface am2125a 1/6/lineout detail
D) show interface am2125a 1/6/lineout wavekey

Solutions: