Nokia 4A0-265 : Nokia Optical Diagnostics and Troubleshooting

4A0-265 real exams

Exam Code: 4A0-265

Exam Name: Nokia Optical Diagnostics and Troubleshooting

Updated: Jun 01, 2026

Q & A: 40 Questions and Answers

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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. 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) No OSC-related alarms will raise on the local node.
B) A Power adjustments action will fail on the local node.
C) A "Data Link Down" alarm will raise on the adjacent node.
D) Traffic will pass between the local and adjacent node.


2. Which of the following statements best describes the output of the command: show xc 1?

A) A list of all boards on all nodes that this cross-connection passes through, along with expected power levels, measured power levels, and allowed power deviations.
B) A list of cross-connections, including A-end, Z-end, frequency, ID number, OCH trail name, and administrative/operational states.
C) OCH trail name, ITU channel, administrative/operational states, protection states, and Wave Keys for both directions.
D) A list of boards that this cross-connection passes through on the local node, along with administrative/operational states, expected power levels, and measured power levels.


3. Consider the exhibit.

Which type of loopback is applied?

A) Client port facility loopback
B) Line port facility Ioopback
C) Client port terminal Ioopback
D) Line port terminal Ioopback


4. Which of the following statements about using Nokia product documentation in the troubleshooting process is TRUE?

A) Before investigating a problem it is important to check the Engineering and Planning Tool User Guide (EPTUG) if a possible issue has already been acknowledged by the Product Unit (PU).
B) Before investigating a problem it is important to check the User Provisioning Guide (UPG) if a possible issue has already been acknowledged by the Product Unit (PU).
C) The Customer Release Notes (CRNs) document collects documented solved known issues, new issues discovered after the product software has been released.as well as software upgrade procedures and firmware details.
D) The Customer Release Notes (CRNs) provides instructions to perform the automated provisioning, commissioning, and power balancing functions in a customer network based on the Nokia 1830 PS5 platform.


Solutions:

Question # 1
Answer: A
Question # 2
Answer: B
Question # 3
Answer: C
Question # 4
Answer: C

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