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Nokia 4A0-205 Exam is a 90-minute test that consists of 60 multiple-choice questions. 4A0-205 exam is conducted online and can be taken from anywhere in the world. 4A0-205 exam validates the knowledge and skills required to design, deploy, and operate optical networks. Candidates who pass the exam receive the Nokia Optical Networking Fundamentals certification, which recognizes their expertise in optical networking. Nokia Optical Networking Fundamentals certification demonstrates a candidate's ability to work with Nokia optical networking solutions and helps them advance their career in the field of optical networking.

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Nokia 4A0-205 certification exam, also known as Nokia Optical Networking Fundamentals, is a globally recognized certification designed for professionals who want to develop a strong foundation in optical networking. 4A0-205 Exam is perfect for individuals who want to showcase their skills and knowledge in the field of optical networking, and is particularly beneficial for professionals who work with Nokia optical equipment.

Nokia Optical Networking Fundamentals Sample Questions (Q22-Q27):

NEW QUESTION # 22
What is the definition of OSNR?

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

Answer: B

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 # 23
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. Logs report a real time status of the node.
D. Alarms and conditions report only historical 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 # 24
What is the purpose of the NFM-T node synchronization?

A. The partial or full node synchronization allows several entities/items defined at NFM-T level to be exported into an XML file, to be used as input for EPT (download to design).
B. The partial or full node synchronization allows several entities/items defined at NFM-T level to be written into the node database (download).
C. The partial or full node synchronization allows several entities/items defined at node level to be retrieved into the NFM-T database (upload).
D. The partial or full node synchronization allows several entities/items defined at EPT level to be retrieved into the NFM-T database (upload from design).

Answer: B

Explanation:
This is done in order to keep the NFM-T database in sync with the nodes in the network. The synchronization process allows the NFM-T to keep track of any changes that are made to the nodes, such as new nodes added, nodes removed, and so on. By synchronizing the node database with the NFM-T, network administrators can ensure that their network is up to date and running efficiently.

NEW QUESTION # 25
What is a trail?

A. An entity to encapsulate a low order signal into a high order container
B. A link between end points to increase the power budget of the optical link
C. A physical link between two optical amplifiers
D. A transparent transport of a client signal

Answer: D

Explanation:
A trail is a transparent transport of a client signal. A trail is a physical link between two points in an optical network, allowing for the transport of a client signal from one point to the other. It is a low-order signal, such as a 10G Ethernet or a Fibre Channel signal, encapsulated into a high-order container, such as a 40G or 100G signal. This allows for the transport of the client signal over longer distances, increasing the power budget of the optical link.

NEW QUESTION # 26
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 one direction and therefore a terminal node
D. A node with only east and west sides without directions towards north and south

Answer: C

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 # 27
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