4A0-205 Test Duration | 4A0-205 Exam Lab Questions

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Nokia 4A0-205 Exam Syllabus Topics:

Section	Objectives
Optical Network Architectures and Systems	- Performance and impairments 1. Chromatic dispersion and nonlinear effects 2. Noise and OSNR basics - Metro and long-haul optical networks 1. ROADM and switching principles 2. Network topology concepts
WDM and Optical Transport Technologies	- Wavelength Division Multiplexing (WDM) 1. CWDM vs DWDM principles 2. Channel spacing and grid concepts - Optical Transport Network (OTN) 1. OTN framing and multiplexing basics 2. Mapping and encapsulation concepts
Fundamentals of Optical Networking	- Optical networking components 1. Optical amplifiers (EDFA) 2. Transmitters and receivers 3. Passive optical components (splitters, couplers) - Optical fiber principles and transmission characteristics 1. Fiber types and structure 2. Attenuation and dispersion concepts 3. Optical signal behavior in fiber

Section

Objectives

Optical Network Architectures and Systems

- Performance and impairments

1. Chromatic dispersion and nonlinear effects
2. Noise and OSNR basics

- Metro and long-haul optical networks

1. ROADM and switching principles
2. Network topology concepts

WDM and Optical Transport Technologies

- Wavelength Division Multiplexing (WDM)

1. CWDM vs DWDM principles
2. Channel spacing and grid concepts

- Optical Transport Network (OTN)

1. OTN framing and multiplexing basics
2. Mapping and encapsulation concepts

Fundamentals of Optical Networking

- Optical networking components

1. Optical amplifiers (EDFA)
2. Transmitters and receivers
3. Passive optical components (splitters, couplers)

- Optical fiber principles and transmission characteristics

1. Fiber types and structure
2. Attenuation and dispersion concepts
3. Optical signal behavior in fiber

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4A0-205 Exam Lab Questions - Exam 4A0-205 Exercise

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Nokia Optical Networking Fundamentals Sample Questions (Q33-Q38):

NEW QUESTION # 33
Is it possible to open and manage EPT designs that are created with different releases than the release installed on the local workstation?

A. No restrictions are imposed on the software release.
B. Only designs created with the current release can be opened and edited.
C. Only designs created with current and older releases can be opened and edited.
D. Designs created with an older release can be opened by a current release but cannot make changes.

Answer: C

Explanation:
It is possible to open and manage EPT designs that are created with different releases than the release installed on the local workstation, however only designs created with current and older releases can be opened and edited. Designs created with an older release can be opened by a current release but changes cannot be made.

NEW QUESTION # 34
What is the function of a pre-amplifier in an optical network?

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

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 # 35
What is a degree-1 node?

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

Answer: B

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 # 36
WDM allows transmission systems to:

A. Allocate different signals to different time slots
B. Transport multiple signals transparently, onto several wavelengths, all together over one single fiber
C. Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission
D. Increase the bit rate of each client signal by spreading it over multiple wavelengths

Answer: B

NEW QUESTION # 37
Which statement is correct about node synchronization?

A. Full synchronization retrieves the correlated alarms from the node
B. Node synchronization is executed to test the reachability of a node
C. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
D. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)

Answer: D

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 # 38
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