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Nokia 4A0-265 Exam Syllabus Topics:

Nokia Optical Diagnostics and Troubleshooting Sample Questions:

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

A) OCH trail name, ITU channel, administrative/operational states, protection states, and Wave Keys for both directions.
B) 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.
C) 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.
D) A list of cross-connections, including A-end, Z-end, frequency, ID number, OCH trail name, and administrative/operational states.

2. Which of the following statements about 1-Day PMs is TRUE?

A) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 8 bins are available for data storing.
B) 1-Day PMs show measurements collected since the beginning of the current day. Up to 8 bins are available for data storing.
C) 1-Day PMs show measurements collected since the beginning of the current day. Up to 33 bins are available for data storing.
D) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 33 bins are available for data storing.

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

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

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

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

Solutions: