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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
Topic 1: Control Plane Protocols- Routing protocols
  • 1. IS-IS traffic engineering
    • 2. OSPF-TE extensions
      - RSVP-TE signaling
      • 1. Path setup and teardown
        • 2. Resource reservation
          Topic 2: Optical Transport Networks- OTN architecture
          • 1. Mapping and grooming
            • 2. OTUk/ODUk structure
              - WDM and DWDM systems
              • 1. Optical spectrum management
                • 2. Channel multiplexing
                  Topic 3: Protection and Restoration- Network resiliency mechanisms
                  • 1. Fast reroute mechanisms
                    • 2. 1+1 protection schemes
                      - Failure recovery strategies
                      • 1. Link/node failure recovery
                        • 2. Traffic restoration techniques
                          Topic 4: GMPLS Fundamentals- GMPLS architecture overview
                          • 1. Control plane vs data plane
                            • 2. Label switching technologies
                              - MPLS extensions for optical networks
                              • 1. Traffic engineering principles
                                • 2. LSP concepts in optical domain

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

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

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


                                  2. Which of the following best describes the Shutting Down state in the NFM-T?

                                  A) A soft maintenance state where new traffic is allowed for restoration
                                  B) It is the same as the administrative maintenance state. No new traffic can be routed over the TE-Unk
                                  C) A transient state where current SNCs are soft-rerouted
                                  D) An automatic shut down of all LSPs in the TE-link


                                  3. Which of the following best describes the Soft Shutting Down state in the NFM-T?

                                  A) An administrative maintenance state where services stay up but no new traffic can be routed over the TE-link
                                  B) An automatic shutdown of a TE-link and all of the LSPs in the TE-link
                                  C) A transient state where current SNCs are soft-rerouted away from the TE-link
                                  D) A soft synchronization state where new traffic is not allowed


                                  4. What category of protocols is used by the ingress router to set up a new LSP?

                                  A) Coloring protocols
                                  B) Link aggregation protocols
                                  C) Link management protocols
                                  D) Signaling protocols


                                  Solutions:

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

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