Nokia Advanced Optical Network Design (4A0-255) Free Practice Test

Question 1

Consider the exhibit that shows a network with a full mesh fiber structure. Link weights indicate the cost.
Future services can be requested between any node pair.
Which of the following topology represents a minimum cost design (minimum overall fiber cost) where link failure survivability is ensured?
A)

B)

C)

D)

A. Option D

B. Option C

C. Option A

D. Option B

Correct Answer: D

Question 2

Consider the exhibit. The grey sites (Site 1 through Site6) from an existing network, which will be extended by adding Site7 and Site8. Which of the following is NOT a common source of interoperability issues for this network extension?

A. Spectrum grid of the extension

B. Regeneration requirements at Site5

C. Fiber connectors at Site6

D. Cascading in the existing network

Correct Answer: C

Question 3

Which of the following best describes Four Wave Mixing (FWM)?

A. FWM is a non-linear impairment resulting from varying velocities at different frequencies.

B. FWM is a non-linear impairment that produces crosstalk at the sum and difference of two wavelengths.

C. FWM is a linear impairment resulting from pulses broadening over ultra-longdistances

D. FWM is a linear impairment that produces crosstalk four adjacent wavelengths are used.

Correct Answer: D

Question 4

Consider an OTN-based network controlled by GMPLS. Which of the following statements is correct?

A. An OCH LSP can be routed through an ODU LSP.

B. An ODU LSP can be routed through an OCH LSP.

C. An ODU LSP is routed between two photonic layer nodes.

D. The routing of the individual ODU frames is based on their label

Correct Answer: D

Welcome to TestSimulate

Nokia Advanced Optical Network Design (4A0-255) Free Practice Test