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Nokia 4A0-265 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Transponder and System Fault Resolution | 20% | - Optical transponder faults
|
| Topic 2: Troubleshooting Methodologies | 30% | - Alarm and condition interpretation
|
| Topic 3: Optical Diagnostics and Monitoring Tools | 25% | - Nokia management interfaces
|
| Topic 4: Optical Network Architecture and Signal Flow | 25% | - Amplifier configurations
|
Nokia Optical Diagnostics and Troubleshooting Sample Questions:
What is the default severity level for a Threshold Crossing Alert (TCA) alarm?
- A. Minor
- B. Warning
- C. Major
- D. Critical
Correct Answer: B 🗳️
Explanation: Only visible for ActualCollection members. You can sign-up / login (it's free).
Which of the following statements about 1-Day PMs is TRUE?
- A. 1-Day PMs show measurements collected over the preceding 24 hours. 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 8 bins are available for data storing.
- C. 1-Day PMs show measurements collected since the beginning of the current day. Up to 33 bins are available for data storing.
- D. 1-Day PMs show measurements collected over the preceding 24 hours. Up to 33 bins are available for data storing.
Correct Answer: A 🗳️
Explanation: Only visible for ActualCollection members. You can sign-up / login (it's free).
Which of the following correctly describes how a unidirectional amplification stage works?
- A. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals are also boosted by the ingress amplifier. - B. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals pass through the ingress amplifier but are not boosted. - C. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals do not pass through the ingress amplifier. - D. * Incoming optical signals pass through the ingress amplifier but are not boosted.
* Outgoing optical signals are boosted by the ingress amplifier.
Correct Answer: C 🗳️
Explanation: Only visible for ActualCollection 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. An "Incoming SUPVY LOS" alarm is raised on the local node.
- B. Traffic does not pass between the local and adjacent nodes.
- C. A "Power Adjustment Required" alarm is eventually raised on the local node.
- D. A "Data Link Down" alarm is raised on the adjacent node.
Correct Answer: A 🗳️
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