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Nokia 4A0-265 Exam Overview:
| Certification Vendor: | Nokia |
| Exam Name: | Nokia Optical Diagnostics and Troubleshooting |
| Exam Number: | 4A0-265 |
| Certificate Validity Period: | Certification program maintenance requirements |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Exam Format: | Multiple-choice |
| Exam Price: | 125 USD |
| Related Certifications: | Nokia Certified Optical Network Services Expert Nokia Certified Optical Network Architect |
| Passing Score: | Not publicly specified |
| Real Exam Qty: | 40 |
| Sample Questions: | Nokia 4A0-265 Sample Questions |
| Exam Way: | Written exam delivered via Pearson VUE or authorized test delivery partner |
| Pre Condition: | None |
| Official Syllabus URL: | https://www.nokia.com/networks/training/onc/exams/optical-diagnostics-troubleshooting |
Nokia 4A0-265 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting Fiber Cuts / Line Issues and Alarm Correlation | |
| Topic 2: Performance Monitoring and Loopbacks for Troubleshooting | |
| Topic 3: Transmission and Power Adjustment Troubleshooting Techniques | |
| Topic 4: Alarms, Conditions and Logs | |
| Topic 5: Optical Signal Flow Through a Node | |
| Topic 6: Documentation and Support Information | |
| Topic 7: Optical Transponder Configuration Troubleshooting | |
| Topic 8: Wavelength Tracker | |
| Topic 9: EPT Report Parameters and Power Commissioning Data |
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
1. Which of the following statements about the Wavelength Tracker (WT) capability is TRUE?
A) WT uses a unique identifier based on a pair of numbers encoded by Optical Transponders OTs) into each service wavelength direction.
B) WT uses a unique identifier based on a pair of numbers encoded by Raman amplifiers into each service wavelength direction.
C) Wave Keys are originated by optical amplifiers.
D) WT is compatible with other vendor domains, but the user must make sure that Wave Keys are unique on the crossed domains.
2. 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 client payload and must be entered manually.
C) Payload type attribute is recorded within the OTN overhead and must be entered manually.
D) Payload type attribute is recorded within the OTN overhead and can be set automatically or manually.
3. Suppose a node is experiencing a little unexpected attenuation over the Optical Supervisory Channel (OSC) transmit direction. Which of the following statements is FALSE?
A) A "Data Link Down" alarm will raise on the adjacent node.
B) Traffic will pass between the local and adjacent node.
C) No OSC-related alarms will raise on the local node.
D) A Power adjustments action will fail on the local node.
4. Suppose a channel-related alarm is reported on an 1830 PSS node, and is related to a possible Wave Keys clock source issue. What is the recommended order for the following troubleshooting steps?
A) 1. Determine the active clock reference source.
2. Replace the suspect PF.
3. Retrieve the channel power trace.
4. Switch to alternate clock source (PF).
B) 1. Retrieve the channel power trace.
2. Determine the active clock reference source.
3. Switch to alternate clock source (PF).
4. Replace the suspect PF.
C) 1. Retrieve the channel power trace.
2. Replace the suspect PF.
3. Determine the active clock reference source.
4. Switch to alternate clock source (PF).
D) 1. Replace the suspect PF.
2. Retrieve the channel power trace.
3. Switch to alternate clock source (PF).
4. Determine the active clock reference source.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: B |
By Violet
