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 Questions & Answers as PDF & Test Engine
Updated: Aug 14, 2026
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Nokia 4A0-265 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Optical Network Architecture and Signal Flow | 25% | - 1830 PSS node architecture
|
| Transponder and System Fault Resolution | 20% | - Service restoration
|
| Troubleshooting Methodologies | 30% | - Alarm and condition interpretation
|
| Optical Diagnostics and Monitoring Tools | 25% | - Performance Monitoring (PM) data analysis
|
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
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) Neither Node A nor Node C.
B) Both Node A and Node C
C) Node C only.
D) No node, as a Raman pump is used in Node A.
2. A "Power Adjustment Required" alarm was raised on the ingress amplifier in slot 1/10. Which of the following commands should be entered to manually adjust the related amplifier optical power levels?
A) config powermgmt ingress 1/10 scot
B) config powermgmt ingress 1/10 adjust
C) config powermgmt ingress 1/10 power adjustment
D) config powermgmt ingress 1/10
3. Which of the following statements about 1-Day PMs is TRUE?
A) 1-Day PMs show measurements collected since the beginning of the current day. 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 33 bins are available for data storing.
C) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 33 bins are available for data storing.
D) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 8 bins are available for data storing.
4. Which of the following is a passive component in a CDC-F network configuration?
A) WR20-TFM Wavelength Router
B) IRDM20 Integrated ROADM
C) MSH4-FSB Fiber Shuffle Module
D) 130SCX10 Optical Transponder
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: C |
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