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Nokia 4A0-220 Exam Braindumps - in .pdf Free Demo

  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Last Updated: Jul 25, 2026
  • Q & A: 40 Questions and Answers
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  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Last Updated: Jul 25, 2026
  • Q & A: 40 Questions and Answers
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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
Control Plane Protocols- Routing protocols
  • 1. IS-IS traffic engineering
    • 2. OSPF-TE extensions
      - RSVP-TE signaling
      • 1. Resource reservation
        • 2. Path setup and teardown
          GMPLS Fundamentals- MPLS extensions for optical networks
          • 1. Traffic engineering principles
            • 2. LSP concepts in optical domain
              - GMPLS architecture overview
              • 1. Control plane vs data plane
                • 2. Label switching technologies
                  Optical Transport Networks- WDM and DWDM systems
                  • 1. Channel multiplexing
                    • 2. Optical spectrum management
                      - OTN architecture
                      • 1. Mapping and grooming
                        • 2. OTUk/ODUk structure
                          Protection and Restoration- Failure recovery strategies
                          • 1. Link/node failure recovery
                            • 2. Traffic restoration techniques
                              - Network resiliency mechanisms
                              • 1. 1+1 protection schemes
                                • 2. Fast reroute mechanisms

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  1. Which categories of protocols are included in the GMPLS technology?

                                  A) Routing, grooming, and signaling
                                  B) Routing, signaling, and link management
                                  C) Link management, signaling, and switching
                                  D) Signaling, routing, and forwarding


                                  2. What is the definition of Constrained Shortest Path First (CSPF)?

                                  A) It is the 5FP algorithm applied after pruning links that do not meet the specified constraints.
                                  B) It is the SPF algorithm applied for low latency LSPs.
                                  C) It is the SPF algorithm applied to low bandwidth LSPs.
                                  D) It is a combination between OSPF-TE and RSVP-TE.


                                  3. When should two physical connections belong to the same SRG?

                                  A) When they are fully disjoint respective to the risk of failure
                                  B) When they are both selected during the setup process
                                  C) When one is the protection of the other
                                  D) When they share the same risk of failure


                                  4. Which label is swapped in an MPLS label stack at an intermediate node?

                                  A) The label with the lowest value
                                  B) The label with the highest value
                                  C) The label on the top
                                  D) The label on the bottom


                                  Solutions:

                                  Question # 1
                                  Answer: B
                                  Question # 2
                                  Answer: A
                                  Question # 3
                                  Answer: D
                                  Question # 4
                                  Answer: C

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