Nokia 4A0-255 : Nokia Advanced Optical Network Design

4A0-255 real exams

Exam Code: 4A0-255

Exam Name: Nokia Advanced Optical Network Design

Updated: Jul 17, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-255 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Explain advanced customer requirements (resilience, latency, encryption, synchronization)
  • Describe advanced EPT design options (including CDC, GMPLS, flexible grid, C+L, etc.)
Topic 2
  • Analyze nominal and restoration routes in EPT
  • Design networks with control plane enabled
Topic 3
  • Describe the concept of trail grooming
  • Design a network accounting for medium to long-term growth
Topic 4
  • Describe the advantages of Forward Error Correction (FEC)
  • Configure grooming optimizing the equipment slot allocation
Topic 5
  • Define low Automatic Spontaneous Emission (ASE) OTs segregation
  • Find alternative routes with better OSNR
Topic 6
  • Describe link power budget, OSNR, Q-factor and BER
  • Assessing and improving the optical reach
Topic 7
  • Describe SRG and “failure scope” configuration
  • Design networks with control plane enabled
Topic 8
  • How to determine the number of network elements and their location
  • Design a network with no ASE noise OTs segregation

Reference: https://www.nokia.com/networks/training/onc/exams/advanced-optical-network-design/

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