4A0-220 Questions & Answers & 4A0-220 Study Guide & 4A0-220 Exam Preparation

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

Exam Code: 4A0-220

Exam Name: Nokia GMPLS-Controlled Optical Networks

Updated: Jul 27, 2026

Q & A: 40 Questions and Answers

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Nokia 4A0-220 Exam Syllabus Topics:

SectionObjectives
Topic 1: Protection and Restoration Mechanisms- Protection and Restoration Combined (PRC)
- Source Based Restoration (SBR)
Topic 2: GMPLS Maintenance and Operations- Operational tasks
- Maintenance principles
Topic 3: Layer Networks (L0, L1, MRN)- L0 Network concepts
- L1 Network concepts
- Multi-Region Networks (MRN)
Topic 4: GMPLS Control Plane Concept and Architecture- Control Plane principles
- GMPLS architecture components
Topic 5: GMPLS Protocols- RSVP-TE
- OSPF-TE
- Link Management Protocols (LMP)

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 the SNC state with an uppercase "N" mean in 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. What is the GMRE node address?

A) The OSPF-TE broadcast IP used to flood the link adjacency information
B) The IP address for communication between NEs
C) The LMP Control Channel ID. This field contains the IPv4 address of the ingress LER as a global unique identifier
D) An IP address for CORBA communication with the NMS


4. Which of the following best describes the Shutting Down state in the NFM-T?

A) A soft maintenance state where new traffic is allowed for restoration
B) An automatic shut down of all LSPs in the TE-link
C) It is the same as the administrative maintenance state. No new traffic can be routed over the TE-Unk
D) A transient state where current SNCs are soft-rerouted


Solutions:

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

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