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

4A0-220 real exams

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Jul 29, 2026

Q & A: 40 Questions and Answers

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4A0-220 exam dumps

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. OSPF-TE extensions
            • 2. IS-IS traffic engineering
              - RSVP-TE signaling
              • 1. Resource reservation
                • 2. Path setup and teardown
                  Optical Transport Networks- OTN architecture
                  • 1. Mapping and grooming
                    • 2. OTUk/ODUk structure
                      - WDM and DWDM systems
                      • 1. Channel multiplexing
                        • 2. Optical spectrum management
                          Protection and Restoration- Failure recovery strategies
                          • 1. Link/node failure recovery
                            • 2. Traffic restoration techniques
                              - Network resiliency mechanisms
                              • 1. Fast reroute mechanisms
                                • 2. 1+1 protection schemes

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

                                  1. What is the Feasibility File in GMRE nodes?

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


                                  2. What does an SNC state of lower case "n" mean for a resource in NFM-T?

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


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

                                  A) Only within layer 1 networks
                                  B) Only within layer 0 networks
                                  C) Both within layer 0 and 1 networks
                                  D) Never


                                  4. Which of the following is not a key feature of GMPLS?

                                  A) Resource optimization
                                  B) Restoration
                                  C) Self-discovery
                                  D) Fast protection


                                  Solutions:

                                  Question # 1
                                  Answer: B
                                  Question # 2
                                  Answer: A
                                  Question # 3
                                  Answer: C
                                  Question # 4
                                  Answer: A

                                  4A0-220 Related Exams
                                  4A0-265 - Nokia Optical Diagnostics and Troubleshooting
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