Nokia : 4A0-220 Questions & Answers
Updated: Oct 11, 2026
No. of Questions: 40 Questions & Answers with Testing Engine
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Nokia 4A0-220 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: GMPLS Maintenance and Operations | - Operational tasks - Maintenance principles |
| Topic 2: GMPLS Control Plane Concept and Architecture | - Control Plane principles - GMPLS architecture components |
| Topic 3: GMPLS Protocols | - Link Management Protocols (LMP) - OSPF-TE - RSVP-TE |
| Topic 4: Layer Networks (L0, L1, MRN) | - Multi-Region Networks (MRN) - L0 Network concepts - L1 Network concepts |
| Topic 5: Protection and Restoration Mechanisms | - Protection and Restoration Combined (PRC) - Source Based Restoration (SBR) |
Nokia GMPLS-Controlled Optical Networks Sample Questions:
Which of the following is not a key feature of GMPLS?
- A. Self-discovery
- B. Restoration
- C. Resource optimization
- D. Fast protection
Correct Answer: C 🗳️
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Which of the following parameters is not considered when restoring an LSP?
- A. Coloring
- B. Reservation priority
- C. Equipment vendor
- D. Maximum latency
Correct Answer: C 🗳️
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What does Test Mode do in an SNC?
- A. It clears the ASONTOPO alarms
- B. Source nodes of affected client services will not be notified in case of failure
- C. It initiates the LMP link verification by sending Test Messages
- D. The LSP will not be restored and will behave like an unprotected service
Correct Answer: C 🗳️
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Which of the following statements about the Wait for Server Restoration (WSR) parameter in the MRN is correct?
- A. When WSR is true, the LO channels do not wait for the LI services to restore.
- B. When WSR is false, the LI services do not wait for the LO restoration and restore through LI switching.
- C. When WSR is true, the LO optical channel remains in the link until the failure is fixed.
- D. When WSR is false, if the failed optical channel can be restored at LO, the data traffic stays in the tunnel.
Correct Answer: B 🗳️
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