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Nokia 4A0-265 Exam Syllabus Topics:

Nokia Optical Diagnostics and Troubleshooting Sample Questions:

Question 1

Which of the following correctly describes how a unidirectional amplification stage works?

A. * Incoming optical signals pass through the ingress amplifier but are not boosted.
* Outgoing optical signals are boosted by the ingress amplifier.
B. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals do not pass through the ingress amplifier.
C. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals pass through the ingress amplifier but are not boosted.
D. * Incoming optical signals are boosted by the ingress amplifier.
* Outgoing optical signals are also boosted by the ingress amplifier.

Question 2

Which of the following statements correctly describes where power adjustments can be performed?

A. In bidirectional configurations, ingress power adjustments are performed against the ingress amplifiers, while egress power adjustments are performed against the egress amplifiers.
B. In unidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
C. In bidirectional configurations, both ingress and egress power adjustments are performed against the ingress amplifiers only.
D. When Raman pumps are used, both ingress and egress power adjustments are performed against the Raman pump directly.

Question 3

Consider the exhibit which shows part of an EPT Schematic View. Which number refers to the Wavelength Router (WR8-88) block?

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

Question 4

Which of the following statements best describes the Forward Error Correction (FEC) technique?

A. FEC enables errors to be detected and data to be retransmitted. This technique is effective only above a specified OSNR threshold.
B. FEC enables errors to be detected and data to be retransmitted. This technique is effective only below a specified OSNR threshold.
C. FEC enables errors to be detected and corrected without retransmission. This technique is effective only below a specified OSNR threshold.
D. FEC enables errors to be detected and corrected without retransmission. This technique is effective only above a specified OSNR threshold.

Solutions: