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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. A power adjustment has succeeded conditionally because of gain settings set to higher levels than expected by design. Which of the following alarms will raise?

A) Power Adjustment Failure (PWRADJFAIL)
B) Amplifier Gain Tilt Adjustments Suspended (PWRTILTSUSP)
C) Gain Adjustment Exceeded Max Value (PWRMAXGAIN)
D) Invalid topology (PRCDRERR-TOPO)

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

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

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

4. Consider the exhibit which shows part of an EPT Schematic View. Which number refers to the Wavelength Router (WR8-88) block?

A) 1
B) 2
C) 4
D) 3
E) 5

Solutions: