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Nokia 4A0-220 Exam Syllabus Topics:

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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #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 putting the LSP in Test mode and moving traffic
                                  • D. By using the Constraint Wizard to modify the constraints
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

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                                  Question #2

                                  Automation is one of the key features of GMPLS. What is its main benefit?

                                  • A. Supporting multi-vendor networks
                                  • B. Reducing OPEX
                                  • C. Providing resilience against multiple failures
                                  • D. Reducing CAPEX
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Explanation: Only visible for Easy4Engine members. You can sign-up / login (it's free).

                                  Question #3

                                  What is the meaning of Generalized in GMPLS?

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

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Easy4Engine members. You can sign-up / login (it's free).

                                  Question #4

                                  What does an SNC state of lower case "n" mean for a resource in NFM-T?

                                  • A. Indicates it's currently using the Nominal resource assigned to it
                                  • B. Indicates if s a higher alarm state level
                                  • C. Indicates it's using a link other than the Nominal
                                  • D. Indicates the nominal resource on a TE-link that is not in use
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

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