Try and practice the latest Nokia : 4A0-220 real questions & answers
Updated: Sep 14, 2026
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Nokia 4A0-220 Exam Overview:
| Certification Vendor: | Nokia |
|---|---|
| Exam Name: | GMPLS-Controlled Optical Networks |
| Exam Number: | 4A0-220 |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60 |
| Related Certifications: | Nokia Optical Networks MPLS/GMPLS Fundamentals |
| Available Languages: | English |
| Passing Score: | 70-80% |
| Recommended Training: | Nokia Optical Networking Learning Paths |
| Exam Registration: | Nokia Training and Certification Portal |
| Sample Questions: | Nokia 4A0-220 Sample Questions |
| Exam Way: | Online or test center-based (varies by region and provider) |
| Pre Condition: | Recommended knowledge of IP/MPLS networking and basic optical transport concepts |
| Official Syllabus URL: | https://www.nokia.com/networks/training/ |
Nokia 4A0-220 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Optical Transport Networks | - WDM and DWDM systems
|
| GMPLS Fundamentals | - GMPLS architecture overview
|
| Control Plane Protocols | - Routing protocols
|
| Protection and Restoration | - Failure recovery strategies
|
Nokia GMPLS-Controlled Optical Networks Sample Questions:
Which of the following best describes the Shutting Down state in the NFM-T?
- A. An automatic shut down of all LSPs in the TE-link
- B. It is the same as the administrative maintenance state. No new traffic can be routed over the TE-Unk
- C. A transient state where current SNCs are soft-rerouted
- D. A soft maintenance state where new traffic is allowed for restoration
Correct Answer: C 🗳️
Explanation: Only visible for Actual4Cert members. You can sign-up / login (it's free).
What does an SNC state of lower case "n" mean for a resource in NFM-T?
- A. Indicates it's currently using the Nominal resource assigned to it
- B. Indicates it's using a link other than the Nominal
- C. Indicates if s a higher alarm state level
- D. Indicates the nominal resource on a TE-link that is not in use
Correct Answer: D 🗳️
Explanation: Only visible for Actual4Cert members. You can sign-up / login (it's free).
What is a Label Switched Path (LSP)?
- A. A protocol used by nodes to exchange information about the state of labels
- B. The path created by MPLS nodes
- C. A High Order Container for client signal
- D. A switched protection path
Correct Answer: B 🗳️
Explanation: Only visible for Actual4Cert members. You can sign-up / login (it's free).
How is the GMRE functionality guaranteed in Nokia equipment?
- A. Controller redundancy guarantees GMRE functionality
- B. Rack redundancy guarantees GMRE functionality in case of a power outage
- C. Redundant LAN cables guarantee GMRE functionality
- D. The specific software configuration guarantees GMRE functionality
Correct Answer: A 🗳️
Explanation: Only visible for Actual4Cert members. You can sign-up / login (it's free).
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