- Exam Code: 4A0-265
- Exam Name: Nokia Optical Diagnostics and Troubleshooting
- Certification Provider: Nokia
- Corresponding Certification:Nokia Optical Network Services Expert
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Nokia 4A0-265 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Alarms, Conditions and Logs | |
| Optical Transponder Configuration Troubleshooting | |
| Optical Signal Flow Through a Node | |
| Performance Monitoring and Loopbacks for Troubleshooting | |
| Wavelength Tracker | |
| Troubleshooting Fiber Cuts / Line Issues and Alarm Correlation | |
| EPT Report Parameters and Power Commissioning Data | |
| Transmission and Power Adjustment Troubleshooting Techniques | |
| Documentation and Support Information |
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
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. Neither Node A nor Node C.
- B. Node C only.
- C. No node, as a Raman pump is used in Node A.
- D. Both Node A and Node C
Correct Answer: D 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
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 opin
- B. show Interface 1/8/LINEIN
- C. show interface 1/8 power
- D. show interface 1/8/UNEIN detail
Correct Answer: D 🗳️
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.
Correct Answer: A 🗳️
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.
Correct Answer: A 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
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