Learn with Nokia : 4A0-220 training material for 100% pass

Last Updated: Sep 16, 2026

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Nokia 4A0-220 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: 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 2: GMPLS Routing and Signaling Protocols25%- RSVP-TE for GMPLS
          • 1. Path and Resv messages
            • 2. Label allocation and signaling
              - OSPF-TE and IS-IS TE extensions
              • 1. Traffic engineering database
                • 2. Link and resource advertisement
                  Topic 3: GMPLS Protection and Restoration25%- Restoration across layers
                  • 1. Restoration priority and coordination
                    • 2. Multilayer survivability
                      - Protection mechanisms
                      • 1. 1+1, 1:1, shared protection
                        • 2. PRC and SBR
                          Topic 4: Advanced GMPLS Features10%- GMPLS optimization and scalability
                          - SRLG and path diversity
                          Topic 5: 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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #1

                                  What is the meaning of Generalized in GMPLS?

                                  • A. Unlike MPLS, GMPLS supports multi-vendor networks
                                  • B. The label can assume an extended value range, and is not constrained as it is with MPLS
                                  • C. GMPLS can be used for traffic types other than data packets
                                  • D. Switching can be based on values other than the label
                                  Reveal Solution  Discussion  0

                                  Correct Answer: C  🗳️

                                  Explanation: Only visible for Exam4Labs members. You can sign-up / login (it's free).

                                  Question #2

                                  How is the GMRE functionality guaranteed in Nokia equipment?

                                  • A. Redundant LAN cables guarantee GMRE functionality
                                  • B. Controller redundancy guarantees GMRE functionality
                                  • C. The specific software configuration guarantees GMRE functionality
                                  • D. Rack redundancy guarantees GMRE functionality in case of a power outage
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Explanation: Only visible for Exam4Labs members. You can sign-up / login (it's free).

                                  Question #3

                                  Which of the following parameters is not considered when restoring an LSP?

                                  • A. Equipment vendor
                                  • B. Reservation priority
                                  • C. Coloring
                                  • D. Maximum latency
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Explanation: Only visible for Exam4Labs members. You can sign-up / login (it's free).

                                  Question #4

                                  What is the GMRE notify address?

                                  • A. An IP address used to signal failures on downstream nodes upstream to the head node
                                  • B. The LMP Control Channel ID. This field contains the IPv4 address of the ingress LER as a global unique identifier
                                  • C. The OSPF-TE broadcast IP used to flood the link adjacency information
                                  • D. The email exchange server to notify the operators of network failures
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Explanation: Only visible for Exam4Labs members. You can sign-up / login (it's free).

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