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

4A0-220 real exams

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Jul 25, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionWeightObjectives
GMPLS Routing and Signaling Protocols25%- RSVP-TE for GMPLS
  • 1. Label allocation and signaling
    • 2. Path and Resv messages
      - OSPF-TE and IS-IS TE extensions
      • 1. Link and resource advertisement
        • 2. Traffic engineering database
          Advanced GMPLS Features10%- GMPLS optimization and scalability
          - SRLG and path diversity
          GMPLS Service Provisioning and Operation20%- Maintenance and monitoring
          • 1. Fault detection and isolation
            • 2. Performance monitoring
              - Creating and managing optical trails and services
              • 1. Path computation and constraints
                • 2. Tunnel and LSP provisioning
                  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
                          GMPLS Protection and Restoration25%- Restoration across layers
                          • 1. Multilayer survivability
                            • 2. Restoration priority and coordination
                              - Protection mechanisms
                              • 1. 1+1, 1:1, shared protection
                                • 2. PRC and SBR

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  1. 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) Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Check the ASON Tunnel box
                                  B) Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Uncheck the ASON Tunnel box
                                  C) Check the Logical Link box
                                  Set the Port Type to Unterminated Check the ASON Routed box Uncheck the ASON Tunnel box
                                  D) Check the Logical Link box
                                  Set the Port Type to Unterminated Check the ASON Routed box Check the ASON Tunnel box


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

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


                                  3. What is Tunnel Property Heritage?

                                  A) Cost, SRLG, and Color properties are propagated from HO to LO LSPs.
                                  B) Maximum allowed bandwith is propagated from HO to LO LSPs.
                                  C) A restored tunnel inherits the ODUk flows.
                                  D) The hierarchy tunnels cannot be nested unless they share the same properties.


                                  4. How can you modify the SNC Nominal Route in NFM-T?

                                  A) By using the Constraint Wizard to modify the constraints
                                  B) By using the Reroute Wizard to modify the constraints
                                  C) By changing the SRG constraints
                                  D) By putting the LSP in Test mode and moving traffic


                                  Solutions:

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

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