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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. 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) 5
E) 3

2. Suppose a Raman amplifier has been plugged into slot 1/8. Which command should the user enter to retrieve the total optical power detected at the ingress interface?

A) show interface 1/8/UNEIN detail
B) show Interface 1/8/LINEIN
C) show interface 1/8 power
D) show interface 1/8 opin

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

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

4. Which of the following statements best describes the Forward Error Correction (FEC) technique?

A) FEC enables errors to be detected and corrected without retransmission. This technique is effective only above a specified OSNR threshold.
B) FEC enables errors to be detected and data to be retransmitted. This technique is effective only above a specified OSNR threshold.
C) FEC enables errors to be detected and corrected without retransmission. This technique is effective only below a specified OSNR threshold.
D) FEC enables errors to be detected and data to be retransmitted. This technique is effective only below a specified OSNR threshold.

Solutions: