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Nokia 4A0-205 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: WDM Technology and Systems	25%	- Wavelength Division Multiplexing concepts - DWDM system architecture and building blocks - Optical amplifiers and transmission engineering
Topic 2: Optical Network Architecture and Nodes	20%	- Network topologies and transport architectures - Switched WDM (SWDM) principles - WDM node types and functionalities
Topic 3: Network Survivability and Protection	15%	- Protection and restoration mechanisms - Availability and survivability concepts - Path and line protection schemes
Topic 4: Optical Networking Basics	20%	- Optical components and functions - Fiber types, properties and transmission principles - Optical signal propagation and characteristics
Topic 5: Network Management and Operations	20%	- Network commissioning and monitoring - NFM-T / WS-NOC management system overview - Performance monitoring, alarms and troubleshooting - Network design with 1830 EPT / WaveSuite Planner

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Nokia Optical Networking Fundamentals Sample Questions (Q25-Q30):

NEW QUESTION # 25
Which use case is most suitable for the deployment of a star topology?

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

Answer: C

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 # 26
Which macro steps can be executed via CPB?

A. Power adjustment and generation of the system loss report
B. Systems validation, system provisioning, power adjustment
C. Node supervision, system validation and system provision
D. Node creation, systems validation and system provisioning

Answer: D

Explanation:
Node creation, systems validation and system provisioning. The CPB (Commissioning Parameter Builder) application is used to generate commissioning files for a Nokia 1830 Photonic Service Switch (PSS-1) and can be used to create new nodes, validate the system configuration, and provision the system with the appropriate settings and parameters. Power adjustment and generation of system loss report are not related to CPB.

NEW QUESTION # 27
What is the metro area network?

A. The metro area network is that portion of network that passes through a city to provide connections to several customers.
B. The metro area network is located between access and core domains.
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.

Answer: A

Explanation:
The Metro Area Network (MAN) is a telecommunications network that spans a metropolitan area and connects multiple local area networks (LANs) or business networks together. It typically covers an area that is larger than a LAN but smaller than a wide area network (WAN). The purpose of a MAN is to provide a high-bandwidth, low-latency communication infrastructure for businesses and other organizations in a metropolitan area.
Reference:
Cisco, "Metro Ethernet Services," https://www.cisco.com/c/en/us/solutions/service-provider/metro-ethernet-services/index.html Techopedia, "Metro Area Network (MAN)," https://www.techopedia.com/definition/26896/metro-area-network-man

NEW QUESTION # 28
Which statement is correct about the NFM-T network map?

A. It represents all supervised nodes grouped by alarm status (with a different color).
B. It automatically represents all nodes grouped by the location string assigned during the NE creation.
C. It allows the graphical visualization of the services deployed in the network with the details of the boards involved in the service.
D. It allows context sensitive navigation and represents nodes and related physical connections with different colors. depending on the active alarms.

Answer: D

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 # 29
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 # 30
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