Exam Name: Nokia Optical Diagnostics and Troubleshooting
Certification Provider: Nokia
Corresponding Certification: Nokia Optical Network Services Expert
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Instant Download Nokia : 4A0-265
Check Updated on: Sep 07, 2026
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Nokia 4A0-265 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Optical Equipment and System Operation | - System configuration and monitoring
|
| Optical Network Fundamentals | - DWDM/OTN basics
|
| Maintenance and Optimization | - Network optimization techniques
|
| Network Diagnostics and Troubleshooting | - Troubleshooting procedures
|
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
Which of the following statements about the "config powermgmt egress 1/2 adjust status command" is TRUE?
- A. 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.
- B. The command enables power adjustment feature on the specified egress amplifier.
- C. The command enables power adjustment feature on the specified egress amplifier, as this feature Is always and only available at the egress amplification stage.
- D. The command displays the status of power adjustment on the specified egress amplifier.
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
Which of the following statements about the alarm masking mechanism is TRUE?
- A. The alarm masking mechanism preserves the events' original time stamps, when related alarms gets hidden and then eventually displayed because of the mechanism itself, so that the user can still know the date and time of the original issue.
- B. The alarm masking mechanism updates the events' original time stamps when it masks/shows alarms, so that when an alarm is not masked anymore, the user can see the updated date and time associated with the original issue.
- C. The alarm masking mechanism makes sure that alarms are always present on the downstream interfaces to facilitate the troubleshooting process.
- D. The alarm masking mechanism always forwards masked alarms to an external Network Management System (NMS) for alarm correlation.
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
Which of the following CLI commands displays a list of the expected and measured output power for the channels whose admin state is up?
- A. config wavekey power detail
- B. show wavekey wtsource power
- C. show wavekey wtsource
- D. config wavekey summary
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
Which of the following statements best describes the payload type setting?
- A. Payload type attribute Is recorded within the client payload and can be set automatically.
- B. Payload type attribute is recorded within the OTN overhead and must be entered manually.
- C. Payload type attribute is recorded within the client payload and must be entered manually.
- D. Payload type attribute is recorded within the OTN overhead and can be set automatically or manually.
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