Nokia 4A0-220 : Nokia GMPLS-Controlled Optical Networks

  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Updated: Oct 16, 2026     Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: GMPLS Fundamentals and Architecture20%- GMPLS control plane overview
  • 1. Layers and components
    • 2. GMRE and NFM-T integration
      - GMPLS LSP types and characteristics
      • 1. L0, L1, and MRN LSPs
        • 2. LSP attributes and metrics
          Topic 2: GMPLS Service Provisioning and Operation20%- Maintenance and monitoring
          • 1. Performance monitoring
            • 2. Fault detection and isolation
              - Creating and managing optical trails and services
              • 1. Tunnel and LSP provisioning
                • 2. Path computation and constraints
                  Topic 3: GMPLS Routing and Signaling Protocols25%- OSPF-TE and IS-IS TE extensions
                  • 1. Link and resource advertisement
                    • 2. Traffic engineering database
                      - RSVP-TE for GMPLS
                      • 1. Label allocation and signaling
                        • 2. Path and Resv messages
                          Topic 4: Advanced GMPLS Features10%- GMPLS optimization and scalability
                          - SRLG and path diversity
                          Topic 5: GMPLS Protection and Restoration25%- Protection mechanisms
                          • 1. 1+1, 1:1, shared protection
                            • 2. PRC and SBR
                              - Restoration across layers
                              • 1. Multilayer survivability
                                • 2. Restoration priority and coordination

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #1

                                  Which of the following is not a GMPLS protocol?

                                  • A. OSPF-TE
                                  • B. SFD
                                  • C. LMP
                                  • D. RSVP-TE
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Explanation: Only visible for Pass4guide members. You can sign-up / login (it's free).

                                  Question #2

                                  How do you add a 3R resource to the NPA in NFM-T?

                                  • A. The resource is discovered automatically
                                  • B. The 3R is added in the Node panel and automatically added to the NPA
                                  • C. The trail is provisioned with 3R constraints and discovered automatically
                                  • D. The 3R is added to the NPA through the Constraint Wizard
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Pass4guide members. You can sign-up / login (it's free).

                                  Question #3

                                  How do you configure the Trail template in NFM-T for an Uplink board (such as 2UC400) in an MRN network with LO and LI restoration capabilities?

                                  • A. Check the Logical Link box
                                    Set the Port Type to Unterminated Check the ASON Routed box Uncheck the ASON Tunnel box
                                  • B. Check the Logical Link box
                                    Set the Port Type to Unterminated Check the ASON Routed box Check the ASON Tunnel box
                                  • C. Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Uncheck the ASON Tunnel box
                                  • D. Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Check the ASON Tunnel box
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Explanation: Only visible for Pass4guide members. You can sign-up / login (it's free).

                                  Question #4

                                  Which of the following best describes Quality of Service in GMPLS?

                                  • A. The ability to set constraints such as latency and priority for different kinds of services
                                  • B. The possibility to have L0 and L1 switching treated with the same quality level in the same network
                                  • C. The amount of information that is possible to store in the Traffic Engineering Database (TED)
                                  • D. The ability to switch back to the nominal route after a failure is repaired without impacting existing traffic
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

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