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Nokia 4A0-205 exam is a computer-based test, and it contains 60 multiple-choice questions. 4A0-205 exam duration is 90 minutes, and the passing score is 80%. The questions are designed to test the candidate's understanding of optical networking fundamentals, including transmission principles, optical networking concepts, and network architectures. 4A0-205 Exam also covers equipment and technology, including optical fiber, optical amplifiers, and optical switches.

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Nokia 4A0-205 Certification Exam is designed to validate the knowledge and skills of professionals in the field of optical networking. Nokia Optical Networking Fundamentals certification is offered by Nokia, a global leader in the telecommunications industry. The Nokia 4A0-205 exam is intended for individuals who are interested in advancing their careers in optical networking, as well as those who wish to demonstrate their expertise in this field.

Nokia 4A0-205 exam covers a wide range of topics related to optical networking, including the fundamentals of optical transmission systems, optical network design and planning, fiber optics, and network management. Candidates who pass this certification exam will have a comprehensive understanding of the principles of optical networking and will be able to design, implement, and manage optical networks effectively. Moreover, the Nokia Optical Networking Fundamentals certification is a prerequisite for many other Nokia certifications, making it a valuable asset for professionals who want to advance their careers in the field of optical networking.

Nokia Optical Networking Fundamentals Sample Questions (Q24-Q29):

NEW QUESTION # 24
What is the metro area network?

A. The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.
B. 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).
C. The metro area network is located between access and core domains.
D. The metro area network is that portion of network that passes through a city to provide connections to several customers.

Answer: D

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 # 25
What is the function of a pre-amplifier in an optical network?

A. Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.
B. Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.
C. Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.
D. Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.

Answer: C

Explanation:
A pre-amplifier is an optical amplifier that is used to boost the power of the received optical signal before it is detected by the receiver in an optical communication system. This is done to overcome the loss of power that occurs as the signal travels through the optical fiber and to ensure that the receiver can detect the signal. The pre-amplification stage is typically located close to the receiver in order to minimize the distance that the signal has to travel between the amplifier and the receiver, which helps to reduce the noise and distortion in the signal.

NEW QUESTION # 26
Is it possible to mix PSS-24x and PSS-8x shelves In an SWDM configuration?

A. Yes, as both can be equipped within the same node
B. Yes, but the PSS-24X shelf must be configured as a master
C. No, as they are not compatible and cannot be used within the same node
D. Yes, but the PSS-8X shelf must be configured as a master

Answer: C

Explanation:
No, it is not possible to mix PSS-24x and PSS-8x shelves in an SWDM (Short Wavelength Division Multiplexing) configuration. The two shelves are not compatible, and cannot be used within the same node.

NEW QUESTION # 27
What is a degree-1 node?

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

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 # 28
How is it possible to check the activation status of GMRE on a node?

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

Answer: C

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 # 29
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