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Nokia (4A0-255) Exam Questions PDF
4A0-255 pdf
  • Exam Code: 4A0-255
  • Exam Name: Nokia Advanced Optical Network Design
  • Updated: Sep 30, 2026
  • 40 Questions and Answers
  • PDF Price: $59.00 $29.5
Nokia (4A0-255) Exam Practice Software
4A0-255 Testing Engine
  • Exam Code: 4A0-255
  • Exam Name: Nokia Advanced Optical Network Design
  • Updated: Sep 30, 2026
  • 40 Questions and Answers
  • Practice Test: $59.00 $29.5
  • Try Demo

Nokia 4A0-255 Exam Questions

Nokia Advanced Optical Network Design exams.

Question — (Single Choice)
Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick blue lines and dashed lines), the defined network 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?

Choose the answer:
Question — (Single Choice)
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?

Choose the answer:
Question — (Single Choice)
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?

A)



B)



C)



D)

Choose the answer:
Question — (Single Choice)
Suppose there is a 40 Gbit/s signal which has a symbol rate of Gbaud/s. Which modulation format is being used?
Choose the answer:
Question — (Single Choice)
What is guardband required for?
Choose the answer:

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