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Nokia 4A0-220 Exam Syllabus Topics:

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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  What does the SNC state with an uppercase "N" mean in a resource in NFM-T?

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

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Lead1Pass members. You can sign-up / login (it's free).

                                  What is the Commissioning File in GMRE nodes?

                                  • A. A file with commissioned GMRE nodes for NPA implementation
                                  • B. A file with target values that determine whether a given LSP is possible
                                  • C. A file of optical impairment parameters for power balance
                                  • D. A control checklist for the operator
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Explanation: Only visible for Lead1Pass members. You can sign-up / login (it's free).

                                  How do you add a 3R resource to the NPA in NFM-T?

                                  • A. The 3R is added in the Node panel and automatically added to the NPA
                                  • B. The 3R is added to the NPA through the Constraint Wizard
                                  • C. The trail is provisioned with 3R constraints and discovered automatically
                                  • D. The resource is discovered automatically
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Explanation: Only visible for Lead1Pass members. You can sign-up / login (it's free).

                                  Which of the following statements about the Wait for Server Restoration (WSR) parameter in the MRN is correct?

                                  • A. When WSR is false, if the failed optical channel can be restored at LO, the data traffic stays in the tunnel.
                                  • B. When WSR is false, the LI services do not wait for the LO restoration and restore through LI switching.
                                  • C. When WSR is true, the LO channels do not wait for the LI services to restore.
                                  • D. When WSR is true, the LO optical channel remains in the link until the failure is fixed.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

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