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Nokia 4A0-205 Exam Syllabus Topics:

SectionObjectives
Topic 1: Optical Transport Networks- OTN Architecture
  • 1. Client Signal Mapping
  • 2. OTN Layers and Frames
  • 3. Network Scalability Concepts
Topic 2: Network Operations and Management- Monitoring and Maintenance
  • 1. Alarm Handling
  • 2. Performance Monitoring
  • 3. Fault Management
Topic 3: Optical Network Design- Network Planning
  • 1. Link Budget Calculations
  • 2. Capacity Planning
  • 3. Network Topologies
Topic 4: WDM Technologies- Wavelength Division Multiplexing
  • 1. CWDM Fundamentals
  • 2. Optical Multiplexing and Demultiplexing
  • 3. DWDM Fundamentals
Topic 5: Protection and Restoration- Network Resiliency
  • 1. Restoration Techniques
  • 2. Service Availability Concepts
  • 3. Protection Switching Mechanisms
Topic 6: Optical Networking Fundamentals- Optical Communication Basics
  • 1. Optical Components and Devices
  • 2. Fiber Optic Transmission Principles
  • 3. Optical Signal Characteristics
Topic 7: Nokia Optical Networking Solutions- Nokia Optical Platforms
  • 1. Deployment Use Cases
  • 2. 1830 Photonic Service Switch Overview
  • 3. Network Management Applications

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Nokia Optical Networking Fundamentals Sample Questions (Q38-Q43):

NEW QUESTION # 38
What is a degree-1 node?

Answer: A

Explanation:
A degree-1 node is a node that only has one direction, and it is therefore a terminal node. This means that the node only has one input and one output port. It does not have any other ports to connect to other nodes or fibers. This is a common feature of some optical transport networks, such as ring networks, where a degree-1 node serves as the endpoint of the ring.


NEW QUESTION # 39
Which sentence about NFM-T is correct?

Answer: B

Explanation:
NFM-T is a network management system designed to manage optical networks in a unified manner. It is used to design, manage, and provision optical services having IP nodes as extremities. It supports a variety of technologies, including optical and IP, and fully supports LO, LI, L2, and GMPLS applications. It is mainly focused on the Nokia 1830 PSS product family, as well as other older product families.


NEW QUESTION # 40
Which of the following are the main reasons for fiber attenuation?

Answer: C


NEW QUESTION # 41
How is it possible to check the activation status of GMRE on a node?

Answer: D

Explanation:
The GMRE activation status is reported in the supervision state column on the node list. The supervision state column displays the GMRE status of the node, which is either "Activated" or "Not Activated". This allows the user to quickly check the GMRE activation status of a node without having to ping the node from the NFM-T platform.


NEW QUESTION # 42
A user needs to retrieve the active alarm list from a network element. Which command should be issued through an 1830 PSS CLI?

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
The Nokia 1830 PSS uses a Command Line Interface (CLI) that is distinct from the Nokia SR-OS used in routers. For technicians performing local maintenance or troubleshooting via a serial or SSH connection to the Shelf Controller (EC), the command to view the current status of the network element's alarms is show fault-database or the shorthand alm.
When the alm command is executed, the system displays a table containing all active alarms, their severity (Critical, Major, Minor, or Warning), the timestamp of the occurrence, and the specific object (e.g., a specific port or card) that is reporting the fault. This is the primary method for "Layer 0" local troubleshooting. While management software like WS-NOC provides a Graphical User Interface (GUI) to view these alarms, knowing the CLI command is essential for field operations where a connection to the central management system might not be available. Option B, C, and D are incorrect as they do not follow the specific syntax of the 1830 PSS CLI environment.


NEW QUESTION # 43
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