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

4A0-220 real exams

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Oct 25, 2026

Q & A: 40 Questions and Answers

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About Nokia 4A0-220 Exam

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Nokia 4A0-220 Exam Syllabus Topics:

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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #1

                                  How do you configure the Trail template in NFM-T for an Uplink board (such as 2UC400) in a network with only LI restoration capability?

                                  • A. Uncheck the Logical Link box NSet the Port Type to Terminated
                                    Uncheck the ASON Routed box Uncheck the ASON Tunnel box
                                  • B. Check the Logical Link box
                                    Set the Port Type to Unterminated Check the ASON Routed box Check the ASON Tunnel box
                                  • C. Check the Logical Link box
                                    Set the Port Type to Unterminated Uncheck the ASON Routed box Uncheck the ASON Tunnel box
                                  • D. Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Check the ASON Tunnel box
                                  Reveal Solution  Discussion  0

                                  Correct Answer: C  🗳️

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                                  Question #2

                                  Which of the following parameters is not considered when restoring an LSP?

                                  • A. Maximum latency
                                  • B. Coloring
                                  • C. Reservation priority
                                  • D. Equipment vendor
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

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                                  Question #3

                                  In a 1830PSS MRN network, when can groups of links be combined (bundled) together in a single TE-Link?

                                  • A. Both within layer 0 and 1 networks
                                  • B. Never
                                  • C. Only within layer 0 networks
                                  • D. Only within layer 1 networks
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).

                                  Question #4

                                  Which label is swapped in an MPLS label stack at an intermediate node?

                                  • A. The label on the top
                                  • B. The label on the bottom
                                  • C. The label with the highest value
                                  • D. The label with the lowest value
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).

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