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

Pass 4A0-220 Exam Cram

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Sep 07, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:
SectionObjectives
GMPLS Control Plane Concept and Architecture- GMPLS architecture components
- Control Plane principles
Layer Networks (L0, L1, MRN)- Multi-Region Networks (MRN)
- L1 Network concepts
- L0 Network concepts
Protection and Restoration Mechanisms- Protection and Restoration Combined (PRC)
- Source Based Restoration (SBR)
GMPLS Protocols- Link Management Protocols (LMP)
- OSPF-TE
- RSVP-TE
GMPLS Maintenance and Operations- Maintenance principles
- Operational tasks
Nokia GMPLS-Controlled Optical Networks Sample Questions:
Question #1

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

  • A. Never
  • B. Only within layer 1 networks
  • C. Both within layer 0 and 1 networks
  • D. Only within layer 0 networks
Answer: C

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Question #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 it's currently using the Nominal resource assigned to it
  • D. Indicates if s a higher alarm state level
Answer: B

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Question #3

Which categories of protocols are included in the GMPLS technology?

  • A. Routing, signaling, and link management
  • B. Routing, grooming, and signaling
  • C. Signaling, routing, and forwarding
  • D. Link management, signaling, and switching
Answer: A

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Question #4

What is the purpose of preemption when establishing an LSP?

  • A. To tear down an existing LSP in order to accommodate higher priority traffic
  • B. To assign the correct wavelengths depending on the type of traffic
  • C. To pick the next hop during LSP signalling
  • D. To measure the end-to-end latency
Answer: A

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