Free Nokia 4A0-205 Practice Test & Real Exam Questions

Exam Code/Number: 4A0-205
Exam Name/Title: Nokia Optical Networking Fundamentals
Certification Provider: Nokia
Corresponding Certification: Nokia Optical Network Professional

Exam Questions: 62
Updated On: Jul 11, 2026

Question #22

What is the metro area network?

A. The metro area network is located between access and core domains.

B. The metro area network is that portion of network that passes through a city to provide connections to several customers.

C. The metro area network is located in between two access area networks and made of photonic nodes only (no OCS/SWDM nodes are used there).

D. The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.

Discussion 0

Correct Answer: B Vote an answer

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Question #23

What is the OAMP LAN interface?

A. It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs

B. It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management

C. It is an RJ-45 interface (common Ethernet port) used to connect one or more client ports (e.g., 1Gb/s or legacy 100Mbit/s client flows)

D. It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)

Discussion 0

Correct Answer: B Vote an answer

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Question #24

Which of the following sentences about FlexGrid is false?

A. FlexGrid systems use specific sets of boards. Old generation WDM systems need to be upgraded to support FlexGrid.

B. Channels in FlexGrid systems are allocated with a granularity of 27.5GHz.

C. FlexGrid allows a more efficient channel spacing.

D. The FlexGrid is currently standardized by ITU-T.

Discussion 0

Correct Answer: A Vote an answer

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Question #25

What is a Shared Risk Group (SRG)?

A. A set of fibers that share the same latency risk

B. A set of nodes that share a common risk of hardware failure

C. A set of boards that share the same failure risk

D. A set of network resources that share a common failure risk

Discussion 0

Correct Answer: D Vote an answer

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Question #26

Where is the OPS card equipped to provide the optical channel protection?

A. Between the transponder and the filter

B. Between the transponder and the amplifiers

C. Before the transponder, on the client side, towards the external device

D. Between the filters and the amplifiers

Discussion 0

Correct Answer: B Vote an answer

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Question #27

Is it possible to mix PSS-24x and PSS-8x shelves In an SWDM configuration?

A. Yes, but the PSS-8X shelf must be configured as a master

B. Yes, but the PSS-24X shelf must be configured as a master

C. No, as they are not compatible and cannot be used within the same node

D. Yes, as both can be equipped within the same node

Discussion 0

Correct Answer: C Vote an answer

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Question #28

Which macro steps can be executed via CPB?

A. Systems validation, system provisioning, power adjustment

B. Node supervision, system validation and system provision

C. Power adjustment and generation of the system loss report

D. Node creation, systems validation and system provisioning

Discussion 0

Correct Answer: D Vote an answer

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