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Nokia Optical Networking Fundamentals Sample Questions (Q34-Q39):

NEW QUESTION # 34
Which of the following statements is true?

A. Alarms and conditions report only historical status of the node.
B. Logs report a real time status of the node.
C. Logs report both active and historical events.
D. Alarms and conditions report a real time status of the node.

Answer: C

Explanation:
A log is a record of events that have occurred within a system, such as a network device or an application. Logs can include information about system activity, configuration changes, and error messages. They can be used for troubleshooting, auditing, and compliance purposes. Logs can report both active (real-time) and historical events that have occurred within a system.
Alarms and conditions, on the other hand, are used to notify operators of real-time status of the node, such as when a threshold is breached or when a specific event occurs. Alarms and conditions are typically used to provide real-time notifications of potential problems or issues, while logs are used to provide a historical record of what has occurred.

NEW QUESTION # 35
Which use case is most suitable for the deployment of a star topology?

A. Access networks, for collecting traffic towards the main central node
B. SNCP-protected links
C. Backbone networks, for supporting protection routes
D. ASON networks, to protect traffic via GMPL5 protocols

Answer: A

Explanation:
A star topology is a network design where all devices are connected to a central hub, which acts as a central point of control and management for the network. This type of topology is commonly used in access networks, where a central node is used to aggregate traffic from multiple users or devices, and then forward it to the core network. This design allows for efficient use of resources and easy management of the network.
Reference:
"Computer Networking: A Top-Down Approach" by James Kurose and Keith Ross (Chapter 3)
"Data Communications and Networking" by Behrouz A. Forouzan (Chapter 2)

NEW QUESTION # 36
What is the purpose of the validate step in the EPT design process?

A. During this step, the configuration available on the involved network elements is compared with the design provided by EPT.
B. This step is optional and is useful to verify the network element layout before going through the commission step.
C. During this step, the run design action is triggered for network design consistency check and errors fixing.
D. This step is used to measure optical power performances over an existing network before making changes.

Answer: C

Explanation:
The validate step in the EPT design process is used to trigger the run design action, which is responsible for verifying the consistency of the network design and fixing any errors that may exist. During the validation process, the system will compare the configuration available on the involved network elements and the design provided by EPT, and any discrepancies will be flagged for further investigation or correction.

NEW QUESTION # 37
Which of the following is an example of optical protection mechanism?

A. GMPLS-enabled SBR
B. OSNCP (e.g., via Y-cable or OPS card)
C. Optical regeneration (e.g., back-to-back regeneration)
D. GR and SBR combined

Answer: B

Explanation:
It can be implemented through the use of a Y-cable or an optical protection switch (OPS) card, which allows for the switching of traffic to a secondary path in the event of a failure on the primary path. This type of protection is commonly used to protect against fiber cuts and other types of physical layer failures in the optical transport network.

NEW QUESTION # 38
What is the function of a pre-amplifier in an optical network?

A. Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.
B. Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.
C. Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.
D. Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

Answer: C

Explanation:
A pre-amplifier is an optical amplifier that is used to boost the power of the received optical signal before it is detected by the receiver in an optical communication system. This is done to overcome the loss of power that occurs as the signal travels through the optical fiber and to ensure that the receiver can detect the signal. The pre-amplification stage is typically located close to the receiver in order to minimize the distance that the signal has to travel between the amplifier and the receiver, which helps to reduce the noise and distortion in the signal.

NEW QUESTION # 39
......

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Test 4A0-205 Engine Version, 4A0-205 Accurate Prep Material

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Nokia Optical Networking Fundamentals Sample Questions (Q34-Q39):

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