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  • Exam Name: Nokia Optical Networking Fundamentals
  • Last Update: 27-Mar-2024
  • Questions and Answers: 40
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4A0-205 Questions and Answers

Question # 1

What is the function of a pre-amplifier in an optical network?

A.

Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.

B.

Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.

C.

Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.

D.

Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

Question # 2

What isthe definition of OSNR?

A.

The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.

B.

The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.

C.

The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.

D.

The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.

Question # 3

Which of the following applications is related to Wavelength Tracker tool?

A.

Collecting logs related to possible issue affecting a wavelength path

B.

Tracking the protection path for a specific wavelength

C.

Tracing the end-to-end wavelength optical power

D.

Correcting errors related to wavelength inconsistencies

Question # 4

Which macro steps can be executed via CPB?

A.

Node creation, systems validation and system provisioning

B.

Power adjustment and generation of the system loss report

C.

Systems validation, system provisioning, power adjustment

D.

Node supervision, system validation and system provision

Question # 5

What is the purpose of the validate step in the EPT design process?

A.

During this step, the configuration available on the involved network elements is compared with the design provided byEPT.

B.

This step is used to measure optical power performances over an existing network before making changes.

C.

This step is optional and is useful to verify the network element layout before going through the commission step.

D.

During this step, the run design action is triggered for network design consistency check and errors fixing.

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