Nokia Optical Diagnostics and Troubleshooting - 4A0-265 Exam Questions [2026]

QUESTION NO: 1
Consider the exhibit which shows an EPT Power Management Report referring to an ingress amplifier. What is the available output optical power range?

A. 0.56 to 1.72 dB B. -0.6 to 1.72 dB C. 0.56 to 1.14 dB D. -0.02 to 1.14 dB

Correct Answer: B

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QUESTION NO: 2
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 User Provisioning Guide (UPG) if a possible issue has already been acknowledged by the Product Unit (PU). B. 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. 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. 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).

Correct Answer: C

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QUESTION NO: 3
Which of the following Performance Measurement (PM) type is NOT typically retrieved at an Optical Transponder (OT) line interface?

A. Forward Error Correction - Errors Counted (FEC-EC) B. Ethernet collision counters C. Digital Wrapper (DW) D. Optical Power Received (OPR)

Correct Answer: B

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QUESTION NO: 4
Consider the exhibit which shows part of an EPT Schematic View. Which number refers to the Wavelength Router (WR8-88) block?

A. 1 B. 3 C. 5 D. 2 E. 4

Correct Answer: A

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