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HOT Test 4A0-205 Result: Nokia Optical Networking Fundamentals - Valid Nokia 4A0-205 Latest Exam Guide

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Nokia Optical Networking Fundamentals Sample Questions (Q37-Q42):

NEW QUESTION # 37
Which use case is most suitable for the deployment of a star topology?

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

Answer: D 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 # 38
What is the meaning of first, second, and third window in the optical fiber propagation context?

• A. These windows correspond to three different minimum and maximum optical power levels used for optical transmission.
• B. Different optical transmission windows correspond to different safety requirements and rules for the related lasers operating with these windows.
• C. These windows are three different wavelength intervals where the WDM optical transmission occurs.
• D. These three windows are three different angles of incidence of the light injected by the laser into the fiber.

Answer: C Explanation:
In optical fiber propagation context, the first, second, and third window refer to different wavelength intervals where the WDM (Wavelength Division Multiplexing) optical transmission occurs.
The first window is the lowest loss window and is typically in the range of 1300-1324nm. This is the most commonly used window for long-haul communications.
The second window is the 1550 nm window and is the most widely used window for long-haul and ultra-long-haul communications. This window has a lower attenuation than the first window, but it also has more dispersion, which can limit the maximum transmission distance.
The third window is the range of 1625-1675 nm, it is also called the L-band window. This window has lower attenuation than the first and second window but its usage is limited due to the high cost of equipment and lack of commercial devices.
These windows are used in WDM systems to increase the capacity of the fiber by transmitting multiple channels of data at different wavelengths on the same fiber.
A,C,D are not correct as they are not related to the meaning of first, second, and third window in the optical fiber propagation context.
Reference:
Nokia Optical Networking Fundamentals, Nokia Press (ISBN:978-1-4822-8109-4)
https://www.nokia.com/networks/solutions/optical-networking/
https://en.wikipedia.org/wiki/Wavelength-division_multiplexing
NEW QUESTION # 39
Is it possible to open and manage EPT designs that are created with different releases than the release installed on the local workstation?

• A. Only designs created with current and older releases can be opened and edited.
• B. No restrictions are imposed on the software release.
• C. Only designs created with the current release can be opened and edited.
• D. Designs created with an older release can be opened by a current release but cannot make changes.

Answer: A Explanation:
It is possible to open and manage EPT designs that are created with different releases than the release installed on the local workstation, however only designs created with current and older releases can be opened and edited. Designs created with an older release can be opened by a current release but changes cannot be made.
NEW QUESTION # 40
Which statement is correct about node synchronization?

• A. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
• B. Node synchronization is executed to test the reachability of a node
• C. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
• D. Full synchronization retrieves the correlated alarms from the node

Answer: C 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 # 41
What is the OAMP LAN interface?

• A. It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)
• B. 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)
• C. It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management
• D. It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs

Answer: C Explanation:
It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management. This interface is used to connect the OAMP node to the LAN, allowing it to be managed and monitored remotely.
NEW QUESTION # 42
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