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Nokia 4A0-220 Exam Syllabus Topics:

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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

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

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


                                  2. What is Tunnel Property Heritage?

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


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

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


                                  4. How is the GMRE functionality guaranteed in Nokia equipment?

                                  A) Redundant LAN cables guarantee GMRE functionality
                                  B) Controller redundancy guarantees GMRE functionality
                                  C) Rack redundancy guarantees GMRE functionality in case of a power outage
                                  D) The specific software configuration guarantees GMRE functionality


                                  Solutions:

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

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