Nokia 4A0-255 Exam Practice Test Instant Access

Question 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 .

Answer : B

Question 2

Which of the following statements about an alien wavelength at 10G is correct?

AIt is an optical signal generated by FWM impairment.

BIt has similar optical performance across multiple vendors equipment at 10G.

CIt can be measured by a VAC card.

DIt does not support Wavelength tracker.

Answer : B

Question 3

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

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

BPRC is as fast as restoration mechanisms.

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

DPRC has a typical recovery time greater than 50 ms.

Answer : B

Question 4

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

AGR use reestablished backup LSPs with resources reserved and configured.

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

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

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

Answer : A

Question 5

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

AAn OCH LSP can be routed through an ODU LSP.

BAn ODU LSP can be routed through an OCH LSP.

CAn ODU LSP is routed between two photonic layer nodes.

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

Answer : D

Question 6

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 7

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

ATOADm

B(Classic) ROADM

CC-F ROADM

DCDC-F ROADm

Answer : A

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

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