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Exam Code: 4A0-220
Exam Name: Nokia GMPLS-Controlled Optical Networks
Updated: Jun 08, 2026
Q & A: 40 Questions and Answers
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1. In a 1830PSS MRN network, when can groups of links be combined (bundled) together in a single TE-Link?
A) Never
B) Only within layer 1 networks
C) Both within layer 0 and 1 networks
D) Only within layer 0 networks
2. What does an SNC state of lower case "n" mean for 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 it's currently using the Nominal resource assigned to it
D) Indicates if s a higher alarm state level
3. Which categories of protocols are included in the GMPLS technology?
A) Routing, signaling, and link management
B) Routing, grooming, and signaling
C) Signaling, routing, and forwarding
D) Link management, signaling, and switching
4. What is the purpose of preemption when establishing an LSP?
A) To tear down an existing LSP in order to accommodate higher priority traffic
B) To assign the correct wavelengths depending on the type of traffic
C) To pick the next hop during LSP signalling
D) To measure the end-to-end latency
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: A |
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