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

4A0-220 actual test
  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Updated: Aug 23, 2026
  • Q & A: 40 Questions and Answers
  • PDF Demo
  • PC Test Engine
  • Online Test Engine
  • Total Price: $59.99  

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

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Nokia 4A0-220 Exam Syllabus Topics:

SectionWeightObjectives
GMPLS Fundamentals and Architecture20%- GMPLS LSP types and characteristics
  • 1. LSP attributes and metrics
    • 2. L0, L1, and MRN LSPs
      - GMPLS control plane overview
      • 1. GMRE and NFM-T integration
        • 2. Layers and components
          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
                  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
                          Advanced GMPLS Features10%- GMPLS optimization and scalability
                          - SRLG and path diversity
                          GMPLS Routing and Signaling Protocols25%- OSPF-TE and IS-IS TE extensions
                          • 1. Traffic engineering database
                            • 2. Link and resource advertisement
                              - RSVP-TE for GMPLS
                              • 1. Label allocation and signaling
                                • 2. Path and Resv messages

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

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

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


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

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


                                  3. What is a Nominal Route in a GMPLS network?

                                  A) The least cost path according to the routing protocol
                                  B) The optimal path that meets TE constraints
                                  C) The best possible path at the moment
                                  D) The nominal power path


                                  4. Which of the following is not a GMPLS protocol?

                                  A) RSVP-TE
                                  B) LMP
                                  C) SFD
                                  D) OSPF-TE


                                  Solutions:

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

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