Nokia 4A0-255 Exam Practice Test Instant Access

Question 1

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

AOUT: B: ODU: C: OPU: D: OPU

BOUT: B: ODU: C: OPU: D: OCH

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

DODU: B: OYU: C: OPU: D: OPU

Answer : C

Question 2

Consider the exhibit. Which of the following NE architectures is represented?

ATOADm

B(Classic) ROADM

CC-F ROADM

DCDC-F ROADm

Answer : A

Question 3

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

AOUT refer to the section between two multiplexers passing through one or more amplifiers.

BOUT refers to the section between two amplifiers.

COUT enables the multiplexing of OCH connections.

DOUT enables FEC processing.

Answer : A

Question 4

Which of the following statements about power commissioning system is most accurate?

AA system must be either linear or a ring.
A system can stop if there is a through communication in a node.

BA system must be a ring only
A system can stop if there is a through connection in a node.

CA system must be a ring only
A system cannot stop if there is a through connection in a node.

DA system must be either linear or a ring
A system cannot stop if there is a through connection in a node

Answer : D

Question 5

Consider the exhibit showing the schematic for an NE in a deployed optical network. The traffic growth forecast is for the use of 40 channels in 3 years. The customer needs to reduce the space for the shelf. Among the following, which additional input is NOT necessary to meet these specific requirements?

ARack size

BExpected traffic added-dropped at the site

CMean time to repair for the equipment

DPower supply

Answer : D

Question 6

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

Answer : B

Question 7

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?

AOption A

BOption B

COption C

DOption D

Answer : B

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