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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Consider the exhibit. What do the different colored green columns indicate?

A) Optical power levels measured at different interfaces throughout the optical path of a single wavelength.
B) Optical power levels measured multiple times against a specific interface, at 24-hour intervals for the same wavelength.
C) The average optical power levels measured for multiple wavelengths throughout their shared optical path.
D) Optical power levels measured for multiple wavelengths against a specific interface.

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

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

3. Consider the exhibit which shows an EPT Power ManagementReport for an ingress amplifier.
What is the available output optical power range?

A) -0.6 to 1.72 dB
B) -0.02 to 1.14 dB
C) 0.56 to 1.14 dB
D) 0.56 to 1.72 dB

4. Which of the following statements about the alarm masking mechanism is TRUE?

A) The alarm masking mechanism updates the events' original time stamps when it masks/shows alarms, so that when an alarm is not masked anymore, the user can see the updated date and time associated with the original issue.
B) The alarm masking mechanism preserves the events' original time stamps, when related alarms gets hidden and then eventually displayed because of the mechanism itself, so that the user can still know the date and time of the original issue.
C) The alarm masking mechanism makes sure that alarms are always present on the downstream interfaces to facilitate the troubleshooting process.
D) The alarm masking mechanism always forwards masked alarms to an external Network Management System (NMS) for alarm correlation.

Solutions: