4A0-205 Exam Torrent: Nokia Optical Networking Fundamentals - 4A0-205 Prep Torrent & 4A0-205 Test Braindumps

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Nokia 4A0-205 Exam Syllabus Topics:

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

>> 4A0-205 Detail Explanation <<

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Nokia Optical Networking Fundamentals Sample Questions (Q10-Q15):

NEW QUESTION # 10
What is a degree-1 node?

A. A node with only one express channel and therefore made of two sides
B. A node with one direction only and therefore used as In-Line-Amplifier (ILA)
C. A node with only east and west sides without directions towards north and south
D. A node with only one direction and therefore a terminal node

Answer: D

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 # 11
With reference to the image, where is the OPS card placed to provide the OMSP protection?

A. Between the mux/demux and the amplifier
B. Before the transponder, on the client side, towards the external device
C. After the amplifiers
D. Between the transponders and the mux/demux

Answer: B

NEW QUESTION # 12
What is the definition of OSNR?

A. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
B. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
C. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
D. The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.

Answer: C

Explanation:
The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth. This is also known as the signal-to-noise ratio (SNR), and it is a measure of how much signal is present in the optical signal compared to the noise, usually expressed in decibels (dB).

NEW QUESTION # 13
How is it possible to check the activation status of GMRE on a node?

A. The GMRE activation status is reported in the supervision state column on the node list
B. The ControlPlane status column on the node list displays the GMRE status for the selected node
C. The GMRE activation status is reflected on the color of the icon representing the node
D. The GMRE reachability can be tested via ping request from NFM-T

Answer: A

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 # 14
Which type of ports are present in the Colorless Wavelength Router (CWR)?

A. Colorless bi-directional ports
B. DeMux ports
C. Black and white ports
D. Colorless uni-directional ports only

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
In the Nokia 1830 PSS (Photonic Service Switch) architecture, the Colorless Wavelength Router (CWR) is a specialized module used within ROADM nodes to enable "colorless" add/drop capabilities. Traditional static multiplexers, like the SFD (Static Filter Device), use fixed-wavelength ports where a specific port is hard-wired to a specific frequency (color). In contrast, a CWR allows any wavelength to be added or dropped from any of its ports.
The ports on a CWR are bi-directional. This means that a single physical port on the CWR card handles both the transmit (Tx) and receive (Rx) paths for a specific wavelength, typically connecting to a transponder's line-side interface. This bi-directional design simplifies fiber management within the shelf and is a key requirement for the "Colorless" attribute of modern flexible grids. By utilizing CWR modules, operators can remotely retune a transponder to a different frequency without needing a technician to physically move fiber patches to a different port on a multiplexer, significantly increasing operational efficiency and reducing human error during service provisioning or restoration.

NEW QUESTION # 15
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