4A0-220 dumps materials - exam dumps for 4A0-220: Nokia GMPLS-Controlled Optical Networks

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

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Jul 20, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

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

                                  Nokia GMPLS-Controlled Optical Networks Sample Questions:

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

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


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

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


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

                                  A) The label on the top
                                  B) The label with the highest value
                                  C) The label on the bottom
                                  D) The label with the lowest value


                                  4. How do you add a 3R resource to the NPA in NFM-T?

                                  A) The resource is discovered automatically
                                  B) The trail is provisioned with 3R constraints and discovered automatically
                                  C) The 3R is added in the Node panel and automatically added to the NPA
                                  D) The 3R is added to the NPA through the Constraint Wizard


                                  Solutions:

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

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