Free Nokia 4A0-255 Exam Dumps Questions & Answers


Exam Code/Number:	4A0-255Join the discussion
Exam Name:	Nokia Advanced Optical Network Design
Certification:	Nokia
Free Question Number:	40
Publish Date:	Oct 09, 2025
# of views:	1760
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Total 40 questions

Question 1

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

A.The management plane DCN can be connected to each NEs directly.
B.The management plane DCN enables direct communication between the NEs.
C.The management plane DCN can be connected to each NEs via OSS/OBS interface.
D.The management plane DCN uses in-band communication.

Question 2

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

A.Rack size
B.Mean time to repair for the equipment
C.Power supply
D.Expected traffic added-dropped at the site

Question 3

Consider the exhibit shows the standard 8-step network design process. Suppose that you have used this process to design a Green filed network, which has been commissioned and is in operation. The customer now requests an extension to the network to accommodate more steps and traffic. Which steps are not required when designing such an extension?

A.Step2 (Analyze Available) and Step 8 (Analyze Cost).
B.Step 2(analyze Traffic Demand and Step 4 ( Define Network Topology)
C.Step (Define Network Architecture ) and Step 5( Evaluate Traffic Demandon Architecture)
D.The steps to befollowed depended on the requirement of the network extension.

Question 4

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

A.It can be measured by a VAC card.
B.It has similar optical performance across multiple vendors equipment at 10G.
C.It does not support Wavelengthtracker.
D.It is an optical signal generated by FWM impairment.

Question 5

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

A.A system must be either linear or a ring.
A system can stop if there is a through communication in a node.
B.A system must be either linear or a ring
A system cannot stop if there is a through connection in a node
C.A system must be a ring only
A system can stop if there is a through connection in a node.
D.A system must be a ring only
A system cannot stop if there is a through connection in a node.