Nokia GMPLS-Controlled Optical Networks : 4A0-220

4A0-220 real exams

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
GMPLS Control Plane Concept and Architecture- Control Plane principles
- GMPLS architecture components
Layer Networks (L0, L1, MRN)- L1 Network concepts
- L0 Network concepts
- Multi-Region Networks (MRN)
Protection and Restoration Mechanisms- Protection and Restoration Combined (PRC)
- Source Based Restoration (SBR)
GMPLS Protocols- OSPF-TE
- Link Management Protocols (LMP)
- RSVP-TE
GMPLS Maintenance and Operations- Maintenance principles
- Operational tasks

Nokia GMPLS-Controlled Optical Networks Sample Questions:

Question #1

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

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

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Question #2

What is the meaning of Generalized in GMPLS?

  • A. Unlike MPLS, GMPLS supports multi-vendor networks
  • B. Switching can be based on values other than the label
  • C. GMPLS can be used for traffic types other than data packets
  • D. The label can assume an extended value range, and is not constrained as it is with MPLS
Answer: C

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Question #3

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

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

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Question #4

What is Tunnel Property Heritage?

  • A. Cost, SRLG, and Color properties are propagated from HO to LO LSPs.
  • B. The hierarchy tunnels cannot be nested unless they share the same properties.
  • C. A restored tunnel inherits the ODUk flows.
  • D. Maximum allowed bandwith is propagated from HO to LO LSPs.
Answer: A

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