- Exam Code: 4A0-220
- Exam Name: Nokia GMPLS-Controlled Optical Networks
- Updated: Sep 15, 2026
- Q & A: 40 Questions and Answers
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| Section | Objectives |
|---|---|
| Topic 1: Optical Transport Networks | - OTN architecture
|
| Topic 2: GMPLS Fundamentals | - MPLS extensions for optical networks
|
| Topic 3: Protection and Restoration | - Failure recovery strategies
|
| Topic 4: Control Plane Protocols | - RSVP-TE signaling
|
In a 1830PSS MRN network, when can groups of links be combined (bundled) together in a single TE-Link?
Correct Answer: D 🗳️
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Which of the following is not a key feature of GMPLS?
Correct Answer: D 🗳️
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Which label is swapped in an MPLS label stack at an intermediate node?
Correct Answer: B 🗳️
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What is the Feasibility File in GMRE nodes?
Correct Answer: B 🗳️
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