4A0-255 Nokia Advanced Optical Network Design exact Exam Questions

Nokia Advanced Optical Network Design

Last Update 8 hours ago Total Questions : 40

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Question # 1

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

An OCH LSP can be routed through an ODU LSP.

An ODU LSP can be routed through an OCH LSP.

An ODU LSP is routed between two photonic layer nodes.

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

Question # 2

Which of the following is recommended to reduce the latency of a 30km long link?

DCM-free amplifiers

Soft-decision FEC

Low-noise amplifiers

L1 encryption

Question # 3

Which of the following statements about Raman amplification is FALSE?

Amplification occurs along the fiber

Chromatic dispersion within the fiber is increased.

Flat gain can be achieved in any transmission band.

OSNR is improved compared to EDFAs permitting lingers spans

Question # 4

Which of the following statement about guaranteed restriction (GR) in generalized Multiprotocol label Switching (GMPLS) is correct?

GR use reestablished backup LSPs with resources reserved and configured.

GR can achieve 100% survivability for a single-failure scenario only.

GR does not required the signaling of the fault to trigger the restoration.

GR calculates a new backup LSP every time a failure occurs.

Question # 5

Consider the exhibit that shows the OTN frame structure . Which of the following sets of label is correct?

OUT: B: ODU: C: OPU: D: OPU

OUT: B: ODU: C: OPU: D: OCH

OPU: B: OTU: C: ODU: D: OPU

ODU: B: OYU: C: OPU: D: OPU

Question # 6

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

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

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

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

FWM is a linear impairment resulting from pulses broadening over ultra-long distances

Question # 7

Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick blue lines and dashed lines), the defined network in thick blue lines and the demand routing (colored numbers in the figure). Every link is 80 km long. Which of the following requirements is supported by this network design with the displayed demand routing?