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Nokia 4A0-265 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Wavelength Tracker | |
| Optical Transponder Configuration Troubleshooting | |
| Alarms, Conditions and Logs | |
| Optical Signal Flow Through a Node | |
| Performance Monitoring and Loopbacks for Troubleshooting | |
| Troubleshooting Fiber Cuts / Line Issues and Alarm Correlation | |
| Transmission and Power Adjustment Troubleshooting Techniques | |
| Documentation and Support Information | |
| EPT Report Parameters and Power Commissioning Data |
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
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. Retrieve the channel power trace.
2. Determine the active clock reference source.
3. Switch to alternate clock source (PF).
4. Replace the suspect PF. - B. 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. - 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. Determine the active clock reference source.
2. Replace the suspect PF.
3. Retrieve the channel power trace.
4. Switch to alternate clock source (PF).
Correct Answer: A 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
Which of the following statements correctly describes where power adjustments can be performed?
- A. In unidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
- B. In bidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
- C. When Raman pumps are used, both ingress and egress power adjustments are performed against the Raman pump directly.
- D. In bidirectional configurations, ingress power adjustments are performed against the ingress amplifiers, while egress power adjustments are performed against the egress amplifiers.
Correct Answer: D 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
Consider the exhibit.
Which type of loopback is applied?
- A. Client port facility loopback
- B. Client port terminal Ioopback
- C. Line port facility Ioopback
- D. Line port terminal Ioopback
Correct Answer: B 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
Which of the following is NOT a characteristic of an Optical Supervisory Channel Loss of Signal (OSC LOS) issue, in case that no "LD Input LOS" alarms are raised against the involved amplifiers?
- A. Traffic does not pass between the local and adjacent nodes.
- B. A "Data Link Down" alarm is raised on the adjacent node.
- C. A "Power Adjustment Required" alarm is eventually raised on the local node.
- D. An "Incoming SUPVY LOS" alarm is raised on the local node.
Correct Answer: D 🗳️
Explanation: Only visible for DumpsValid members. You can sign-up / login (it's free).
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