Nokia 4A0-265 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 4A0-265
Exam Name/Title: Nokia Optical Diagnostics and Troubleshooting
Certification Provider: Nokia
Corresponding Certification: Nokia Optical Network Services Expert

Exam Questions: 40
Updated On: Jul 11, 2026

Question #17

Which of the following statements about optical power vs amplification stages is TRUE?

A. When multiple channels pass through a shared port (for example, an amplifier line interface), the total aggregated power reflects the number of channels currently present.

B. The Optical Supervisory Channel (OSC) is amplified when passing through all amplifier types, except for Raman which is not based on EDFA.

C. When channels pass through amplifiers, all of them always experience a similar amplification.

D. Ingress amplifiers are always more powerful [than egress amplifiers, to reduce the impact of non-linear effects.

Discussion 0

Correct Answer: A Vote an answer

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Question #18

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

A. The command displays the status of power adjustment on the specified egress amplifier.

B. The command enables power adjustment feature on the specified egress amplifier, as this feature Is always and only available at the egress amplification stage.

C. 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.

D. The command enables power adjustment feature on the specified egress amplifier.

Discussion 0

Correct Answer: D Vote an answer

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Question #19

Which of the following statements correctly describes where power adjustments can be performed?

A. In bidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.

B. In bidirectional configurations, ingress power adjustments are performed against the ingress amplifiers, while egress power adjustments are performed against the egress amplifiers.

C. In unidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.

D. When Raman pumps are used, both ingress and egress power adjustments are performed against the Raman pump directly.

Discussion 0

Correct Answer: B Vote an answer

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Question #20

Consider the exhibit. A single directional fiber cut is occurring between two amplifiers in bidirectional configuration. Which node(s) will report a "LD Input LOS" alarm?

A. Node A and Node B

B. Node A only

C. Node B only

D. Node C only

Discussion 0

Correct Answer: C Vote an answer

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