Purchase Nokia : 4A0-265 Exam Materials and then pass exam easily
Updated: May 31, 2026
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Nokia Optical Diagnostics and Troubleshooting Sample Questions:
1. 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 do not pass through the ingress amplifier.
B) * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals are also boosted by the ingress amplifier.
C) * Incoming optical signals pass through the ingress amplifier but are not boosted.
* Outgoing optical signals are boosted by the ingress amplifier.
D) * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals pass through the ingress amplifier but are not boosted.
2. On a bidirectional optical amplifier configuration, which of the following are Wavelength Tracker detection points?
A) An optical amplifier has no Wavelength Tracker detection points.
B) SIG interface only.
C) LINEOUT and SIGOUT interfaces.
D) LINE and SIG interfaces.
3. 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
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: D | Question # 3 Answer: B | Question # 4 Answer: B |
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