Passing Nokia GMPLS-Controlled Optical Networks actual test, valid 4A0-220 test braindump

Nokia GMPLS-Controlled Optical Networks - 4A0-220

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Aug 25, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
Topic 1: 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 2: GMPLS Fundamentals- GMPLS architecture overview
          • 1. Control plane vs data plane
            • 2. Label switching technologies
              - MPLS extensions for optical networks
              • 1. Traffic engineering principles
                • 2. LSP concepts in optical domain
                  Topic 3: Optical Transport Networks- OTN architecture
                  • 1. OTUk/ODUk structure
                    • 2. Mapping and grooming
                      - WDM and DWDM systems
                      • 1. Optical spectrum management
                        • 2. Channel multiplexing
                          Topic 4: 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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  Question 1

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

                                  A. Coloring
                                  B. Maximum latency
                                  C. Reservation priority
                                  D. Equipment vendor


                                  Question 2

                                  What is the Feasibility File in GMRE nodes?

                                  A. A control checklist for the operator
                                  B. A file of optical impairment parameters for power balance
                                  C. A file with commissioned GMRE nodes for NPA implementation
                                  D. A file with target values that determine whether a given LSP can be routed


                                  Question 3

                                  Which of the following information is present in every GMPLS-enabled node?

                                  A. The list of LSPs created in the entire network
                                  B. The frequency of each client path in the entire network
                                  C. The bandwidth of each client path in the entire network
                                  D. The state of each link in the entire network


                                  Question 4

                                  Which of the following is not a GMPLS protocol?

                                  A. SFD
                                  B. LMP
                                  C. RSVP-TE
                                  D. OSPF-TE


                                  Solutions:

                                  Question 1
                                  Answer: D
                                  Question 2
                                  Answer: D
                                  Question 3
                                  Answer: D
                                  Question 4
                                  Answer: A

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