Nokia GMPLS-Controlled Optical Networks : 4A0-220

  • Exam Code: 4A0-220
  • Exam Name: Nokia GMPLS-Controlled Optical Networks
  • Updated: Jul 23, 2026     Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
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 Control Plane Concept and Architecture- Control Plane principles
- GMPLS architecture components
GMPLS Maintenance and Operations- Operational tasks
- Maintenance principles
GMPLS Protocols- OSPF-TE
- Link Management Protocols (LMP)
- RSVP-TE

Nokia GMPLS-Controlled Optical Networks Sample Questions:

1. How do you configure the Trail template in NFM-T for an Uplink board (such as 2UC400) in a network with only LI restoration capability?

A) Uncheck the Logical Link box NSet the Port Type to Terminated
Uncheck the ASON Routed box Uncheck the ASON Tunnel box
B) Check the Logical Link box
Set the Port Type to Unterminated Check the ASON Routed box Check the ASON Tunnel box
C) Uncheck the Logical Link box Set the Port Type to Terminated Check the ASON Routed box Check the ASON Tunnel box
D) Check the Logical Link box
Set the Port Type to Unterminated Uncheck the ASON Routed box Uncheck the ASON Tunnel box


2. What is the Commissioning File in GMRE nodes?

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


3. 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 if s a higher alarm state level
D) Indicates it's currently using the Nominal resource assigned to it


4. When should two physical connections belong to the same SRG?

A) When they are fully disjoint respective to the risk of failure
B) When one is the protection of the other
C) When they share the same risk of failure
D) When they are both selected during the setup process


Solutions:

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

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