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Nokia 4A0-265 Exam Syllabus Topics:

Nokia Optical Diagnostics and Troubleshooting Sample Questions:

Question 1

Consider the exhibit. A single directional fiber cut is occurring between two amplifiers in unidirectional configuration with Raman pump.
Multiple services are crossing the affected span.
Which node(s) will report an Incoming Payload LOS" alarm?

A. Node C only.
B. Both Node A and Node C
C. No node, as a Raman pump is used in Node A.
D. Neither Node A nor Node C.

Question 2

Which of the following statements about the "config powermgmt egress 1/2 adjust status command" is TRUE?

A. The command enables power adjustment feature on the specified egress amplifier.
B. The command displays commissioning status and WT decoder usage for the specified egress amplifiers only, as this feature is always and only done in the egress direction.
C. The command displays the status of power adjustment on the specified egress amplifier.
D. The command enables power adjustment feature on the specified egress amplifier, as this feature Is always and only available at the egress amplification stage.

Question 3

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

A. 8.0 dB
B. 5.0 dB
C. 10.0 dB
D. 2.0 dB

Question 4

Suppose a "Channel Absent" alarm is reported on an 1830 PSS node. What is the recommended order for the following troubleshooting steps?

A. 1. Check observed Wave Keys against expected Wave Keys.
2. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).
3. Retrieve the channel power trace.
4. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.
B. 1. Retrieve the channel power trace.
2. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.
3. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).
4. Check observed Wave Keys against expected Wave Keys.
C. 1. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).
2. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.
3. Check observed Wave Keys against expected Wave Keys.
4. Retrieve the channel power trace.
D. 1. Retrieve the cross-connection (XC) details and see what virave Keys should be present.
2. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).
3. Retrieve the channel power trace.
4. Check observed Wave Keys against expected Wave Keys.

Solutions: