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

4A0-220 real exams

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Oct 21, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
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
          Protection and Restoration- Failure recovery strategies
          • 1. Traffic restoration techniques
            • 2. Link/node failure recovery
              - Network resiliency mechanisms
              • 1. 1+1 protection schemes
                • 2. Fast reroute mechanisms
                  Optical Transport Networks- WDM and DWDM systems
                  • 1. Channel multiplexing
                    • 2. Optical spectrum management
                      - OTN architecture
                      • 1. OTUk/ODUk structure
                        • 2. Mapping and grooming
                          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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #1

                                  Which of the following best describes Quality of Service in GMPLS?

                                  • A. The possibility to have L0 and L1 switching treated with the same quality level in the same network
                                  • B. The ability to switch back to the nominal route after a failure is repaired without impacting existing traffic
                                  • C. The amount of information that is possible to store in the Traffic Engineering Database (TED)
                                  • D. The ability to set constraints such as latency and priority for different kinds of services
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Actual4Exams members. You can sign-up / login (it's free).

                                  Question #2

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

                                  Correct Answer: C  🗳️

                                  Explanation: Only visible for Actual4Exams members. You can sign-up / login (it's free).

                                  Question #3

                                  What is the Link Maintenance window?

                                  • A. A wizard for modifying TE-link attributes
                                  • B. A centralized alarm manager
                                  • C. A centralized view of the TE-link for the operator
                                  • D. A wizard with commands to set links and nodes to maintenance
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Actual4Exams 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 it's using a link other than the Nominal
                                  • C. Indicates if s a higher alarm state level
                                  • D. Indicates the nominal resource on a TE-link that is not in use
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Explanation: Only visible for Actual4Exams members. You can sign-up / login (it's free).

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