Expert Answers to Nokia Exam 4A0-205 Questions

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Nokia Optical Network Professional Nokia Optical Networking Fundamentals

Nokia Optical Networking Fundamentals

Last Update Apr 7, 2026
Total Questions : 59

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Questions 2

WDM allows transmission systems to:

Options:

Transport multiple signals transparently, onto several wavelengths, all together over one single fiber

Increase the bit rate of each client signal by spreading it over multiple wavelengths

Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission

Allocate different signals to different time slots

Discussion 0

Questions 3

Which of the following are the main reasons for fiber attenuation?

Options:

Refraction and reflection

Scattering and absorption

Chromatic dispersion (CD) and polarization mode dispersion

Small channel spacing

Discussion 0

Questions 4

Which of the following statements is true about chromatic dispersion (CD)?

Options:

Different channels have different bandwidth and this causes different CD performances.

The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.

Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.

The fiber attenuation introduces inter-channel interference.

Discussion 0

Questions 5

Is it possible to select the fiber type independently for each segment while designing a network in EPT?

Options:

Yes, during the link creation through the wizard

No, a unique type is allowed per design for all segments

No, as the fiber type is selected for links only and it's one for whole design

Yes, during the segment creation phase or editing

Discussion 0

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