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Nokia Optical Networking Fundamentals Sample Questions (Q25-Q30):
NEW QUESTION # 25
Which mechanisms can be put in place to increase network survivability?
- A. Protection, where backup resources are pre-allocated and reserved; or restoration, where backup resources are allocated upon failure.
- B. Protection, where backup resources are pre-allocated and reserved; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism
- C. Protection, where backup resources are allocated upon failure; or restoration, where backup resources are pre-allocated and reserved
- D. Protection, where backup resources are allocated upon failure; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism
Answer: A
Explanation:
There are two main mechanisms that can be put in place to increase network survivability: protection and restoration. Protection involves pre-allocating and reserving backup resources so that they are ready in case of a failure. Restoration involves allocating backup resources upon failure and using a 1+1 protection mechanism to recover each trail. This ensures that the network is able to re-route traffic in the event of a failure, increasing the overall survivability of the network.
NEW QUESTION # 26
Where is the OPS card equipped to provide the optical channel protection?
- A. Between the transponder and the filter
- B. Between the filters and the amplifiers
- C. Before the transponder, on the client side, towards the external device
- D. Between the transponder and the amplifiers
Answer: D
Explanation:
According to the Nokia's 1830 Photonic Service Switch (PSS) product documentation, the Optical Protection Switching (OPS) card is equipped in the transponder and is responsible for providing optical channel protection between the transponder and the amplifiers. The OPS card monitors the optical signal and switches to a pre-configured protection path in case of signal degradation or loss.
NEW QUESTION # 27
Which statement is correct about the NFM-T network map?
- A. It allows the graphical visualization of the services deployed in the network with the details of the boards involved in the service.
- B. It allows context sensitive navigation and represents nodes and related physical connections with different colors. depending on the active alarms.
- C. It represents all supervised nodes grouped by alarm status (with a different color).
- D. It automatically represents all nodes grouped by the location string assigned during the NE creation.
Answer: B
Explanation:
The NFM-T network map provides a graphical view of the network with different colors used to represent each node, physical connection, and active alarm. It allows the user to quickly identify any issues in the network and provides context sensitive navigation.
NEW QUESTION # 28
Which of the following statements is true?
- A. Alarms and conditions report a real time status of the node.
- B. Logs report both active and historical events.
- C. Alarms and conditions report only historical status of the node.
- D. Logs report a real time status of the node.
Answer: B
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 # 29
Which statement is correct about node synchronization?
- A. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
- B. Node synchronization is executed to test the reachability of a node
- C. Full synchronization retrieves the correlated alarms from the node
- D. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
Answer: A
Explanation:
Node synchronization is a process of keeping the NFM-T database in sync with the nodes in the network. The synchronization process will download all the items from the node, including NE parameters, ports, alarms, internal links, etc., to the NFM-T database. This ensures that the NFM-T database is up to date and the network is running efficiently.
NEW QUESTION # 30
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