Nokia Optical Diagnostics and Troubleshooting : 4A0-265

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Nokia 4A0-265 Exam Syllabus Topics:

Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Suppose a Raman amplifier has been plugged into slot 1/8. Which command should the user enter to retrieve the total optical power detected at the ingress interface?

A) show Interface 1/8/LINEIN
B) show interface 1/8/UNEIN detail
C) show interface 1/8 opin
D) show interface 1/8 power

2. When troubleshooting possible generic fiber cuts, the recommended first step is to: 1. Review alarms at nodes where power loss occurs.
What is the next recommended step?

A) Review EPT design for calculated span loss.
B) Monitor amplifier total power in/out to isolate the direction of a possible cut.
C) Perform network power traces to attempt to determine the point of power loss.
D) Review PM data to determine if the problem is intermittent.

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

A) 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.
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) 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).

4. Which of the following statements about the alarm masking mechanism is TRUE?

A) The alarm masking mechanism preserves the events' original time stamps, when related alarms gets hidden and then eventually displayed because of the mechanism itself, so that the user can still know the date and time of the original issue.
B) The alarm masking mechanism updates the events' original time stamps when it masks/shows alarms, so that when an alarm is not masked anymore, the user can see the updated date and time associated with the original issue.
C) The alarm masking mechanism makes sure that alarms are always present on the downstream interfaces to facilitate the troubleshooting process.
D) The alarm masking mechanism always forwards masked alarms to an external Network Management System (NMS) for alarm correlation.

Solutions: