4A0-255 by Nokia Actual Free Exam Q&As

Nokia Advanced Optical Network Design - 4A0-255 Exam Practice Test

Question 1

Where is guardbandmandatoryfor EMF?

A. Between 10G and 100G channels B. Between 10G and 40G channels C. Between 40G and 100G channels D. Between 10G and 200G channels

Discussion 0

Correct Answer: D Vote an answer

Question 2

Which ofthe following statements about Raman amplification is FALSE?

A. Flat gain can be achieved in any transmission band. B. Amplification occurs along the fiber C. OSNR is improved compared to EDFAs permitting lingers spans D. Chromatic dispersion within the fiber is increased.

Discussion 0

Correct Answer: C Vote an answer

Question 3

Consider the exhibit that shows a link power budget diagram. Which of the following is represented at location 2?

A. Power range B. System aging margin C. Minimum attenuation D. OSNR margin

Discussion 0

Correct Answer: A Vote an answer

Question 4

Suppose that for a given number of buffer credits and for an given average FC frame size, the maximum FC link length is 50 km.
If the average FC frame size is doubled, which of the following is correct?

A. Throughput is doubled. B. The buffer credits need to be adjusted to achieve the maximum throughput. C. The throughput is halved. D. The Throughput is the same,.

Discussion 0

Correct Answer: B Vote an answer