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

"Nokia GMPLS-Controlled Optical Networks", also known as 4A0-220 exam, is a Nokia Certification. With the complete collection of questions and answers, BraindumpsPass has assembled to take you through 40 Q&As to your 4A0-220 Exam preparation. In the 4A0-220 exam resources, you will cover every field and category in Nokia Optical Network Services Expert Certification helping to ready you for your successful Nokia Certification.

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  • Updated on: Aug 24, 2026
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  • Updated on: Aug 24, 2026
  • No. of Questions: 40 Questions & Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
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
          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
                  Optical Transport Networks- WDM and DWDM systems
                  • 1. Channel multiplexing
                    • 2. Optical spectrum management
                      - OTN architecture
                      • 1. OTUk/ODUk structure
                        • 2. Mapping and grooming
                          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. Which of the following is not a key feature of GMPLS?

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


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

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


                                  3. What does the SNC state with an uppercase "N" mean in a resource in NFM-T?

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


                                  4. How can you modify the SNC Nominal Route in NFM-T?

                                  A) By changing the SRG constraints
                                  B) By putting the LSP in Test mode and moving traffic
                                  C) By using the Constraint Wizard to modify the constraints
                                  D) By using the Reroute Wizard to modify the constraints


                                  Solutions:

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

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