Nokia 4A0-255 Exam Actual Questions

Name: Nokia Advanced Optical Network Design
Brand: QA4Exam
SKU: 4A0-255
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The questions for 4A0-255 were last updated on Oct 2, 2024.

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Question No. 1

Which if the following statements about Recovery Time Objective (RTO) and Recovery Point Object Point Objective (PRO) is FALSE?

ARTO/PRO define business continually requirements for data center.

BRTO/PRO defined the acceptable amount of data (in bits) that can be lost after a failure.

CData center mirroring has the most critical level of RTO.RPO among DC applications.

DTier data centers have stricter RTO/PRO requirements than Tire .

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Correct Answer: B

Question No. 2

What is precision Time Protocol (PTP) designed for?

APrecise time measurements

BSynchronization of encryption entities

CShortest path discovery

DPacket-based timing distribution

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Correct Answer: B

Question No. 3

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?

AThe throughput is halved.

BThroughput is doubled.

CThe Throughput is the same,.

DThe buffer credits need to be adjusted to achieve the maximum throughput.

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Correct Answer: D

Question No. 4

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

ADCM-free amplifiers

BSoft-decision FEC

CLow-noise amplifiers

DL1 encryption

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Correct Answer: C

Question No. 5

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

AIntrusions on fibers

BPower injection one channel

CHacking of L1 encryption

DIntrusions in the cryptographic keys

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Correct Answer: B

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