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4A0-255 Exam Dumps - Nokia Optical Network Design Expert Questions and Answers

Question # 4

Which of the following about the Optical channel Transport Unit (OUT0 in ONT network is correct?

Options:

A.

OUT refer to the section between two multiplexers passing through one or moreamplifiers.

B.

OUT refers to the section between two amplifiers.

C.

OUT enables the multiplexing of OCH connections.

D.

OUT enables FEC processing.

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Question # 5

Which of the following is NOT a functionality provided by a coherent receiver?

Options:

A.

Analog-to-digital conversion (ADC)

B.

Digital signal processing (DSP)

C.

Mixing

D.

Demultiplexing

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Question # 6

Which of the following statements about the recovery time for protection and restoration combined (PRC) is correct?

Options:

A.

PRC can be as fact as sub-network connection protection (SNCP)

B.

PRC is as fast as restoration mechanisms.

C.

PRC has a recovery time that depends on the broken links.

D.

PRC has a typical recovery time greater than 50 ms.

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Question # 7

Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick bluelinesand dashed lines), the definednetwork 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?

Options:

A.

1+1 protection

B.

Minimum cost design

C.

Minimum latency

D.

Resilience against two link faults

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Question # 8

Which of the following statements about the management plane data Communications Network (DCN) is correct?

Options:

A.

The management plane DCN uses in-band communication.

B.

The management plane DCN can be connected to each NEs via OSS/OBS interface.

C.

The management plane DCN can be connected to each NEs directly.

D.

The management plane DCN enables direct communication between the NEs.

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Question # 9

Which of the following can be detected through power monitoring with an Optical Time Domain Reflect meter?

Options:

A.

Intrusions on fibers

B.

Power injection one channel

C.

Hacking of L1 encryption

D.

Intrusions in the cryptographic keys

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Exam Code: 4A0-255
Exam Name: Nokia Advanced Optical Network Design
Last Update: Feb 22, 2025
Questions: 40
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