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

Nokia 4A0-220 Actual PDF
  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Updated: Sep 13, 2026
  • Q & A: 40 Questions and Answers
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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
Topic 1: 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 2: Optical Transport Networks- WDM and DWDM systems
          • 1. Optical spectrum management
            • 2. Channel multiplexing
              - OTN architecture
              • 1. Mapping and grooming
                • 2. OTUk/ODUk structure
                  Topic 3: 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
                          Topic 4: 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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question #1

                                  What is the GMRE notify address?

                                  • A. The LMP Control Channel ID. This field contains the IPv4 address of the ingress LER as a global unique identifier
                                  • B. The email exchange server to notify the operators of network failures
                                  • C. An IP address used to signal failures on downstream nodes upstream to the head node
                                  • D. The OSPF-TE broadcast IP used to flood the link adjacency information
                                  Reveal Solution  Discussion  0

                                  Correct Answer: C  🗳️

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

                                  Question #2

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

                                  • A. An automatic shut down of all LSPs in the TE-link
                                  • B. A transient state where current SNCs are soft-rerouted
                                  • C. A soft maintenance state where new traffic is allowed for restoration
                                  • D. It is the same as the administrative maintenance state. No new traffic can be routed over the TE-Unk
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

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

                                  Question #3

                                  What is the Commissioning File in GMRE nodes?

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

                                  Correct Answer: D  🗳️

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

                                  Question #4

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

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

                                  Correct Answer: B  🗳️

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

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