Pass Nokia Optical Network Professional 4A0-205 exam [May 28, 2023] Updated 42 Questions [Q17-Q31]

Pass Nokia Optical Network Professional 4A0-205 exam [May 28, 2023] Updated 42 Questions

Nokia 4A0-205 Actual Questions and 100% Cover Real Exam Questions

The Nokia 4A0-205 exam is an important certification for professionals looking to advance their careers in the telecommunications industry. This exam is especially relevant for those who work in the design, implementation, and management of optical networks. By passing this exam, professionals can demonstrate their expertise in optical networking and gain recognition for their skills and knowledge.

The Nokia 4A0-205 exam covers a range of topics related to optical networking, including network architecture, transmission systems, wavelength division multiplexing (WDM), optical amplifiers, and more. The exam also covers advanced topics such as network planning, network management, and network security. By passing the Nokia 4A0-205 exam, you will have demonstrated your knowledge and skills in these areas.

The Nokia 4A0-205 Exam is intended for professionals who want to enhance their knowledge and skills in optical networking. This exam is suitable for network engineers, network designers, network administrators, and other IT professionals who are involved in the planning, design, implementation, and management of optical networks. The exam is also suitable for students who are interested in pursuing a career in optical networking.

QUESTION 17
Which statement is correct about the NFM-T network map?

 It automatically represents all nodes grouped by the location string assigned during the NE creation.

 It represents all supervised nodes grouped by alarm status (with a different color).

 It allows context sensitive navigation and represents nodes and related physical connections with different colors. depending on the active alarms.

 It allows the graphical visualization of the services deployed in the network with the details of the boards involved in the service.

The NFM-T network map provides a graphical view of the network with different colors used to represent each node, physical connection, and active alarm. It allows the user to quickly identify any issues in the network and provides context sensitive navigation.

QUESTION 18
Which mechanisms can be put in place to increase network survivability?

 Protection, where backup resources are pre-allocated and reserved; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism

 Protection, where backup resources are allocated upon failure; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism

 Protection, where backup resources are allocated upon failure; or restoration, where backup resources are pre-allocated and reserved

 Protection, where backup resources are pre-allocated and reserved; or restoration, where backup resources are allocated upon failure.

There are two main mechanisms that can be put in place to increase network survivability: protection and restoration. Protection involves pre-allocating and reserving backup resources so that they are ready in case of a failure. Restoration involves allocating backup resources upon failure and using a 1+1 protection mechanism to recover each trail. This ensures that the network is able to re-route traffic in the event of a failure, increasing the overall survivability of the network.

QUESTION 19
What does it take to get connected to the NSP platform?

 A browser and the NSP IP address; and from the landing page, the NSP application should be downloaded and launched.

 A browser and the NSP IP address. Then, a browser plugin needs to be installed and the laptop rebooted before the NSP can be correctly reached.

 A browser, the NSP IP address, and the credentials to access the web-based interface (WebUI).

 The NSP package should be downloaded from the Nokia website and properly licensed for the specific workstation to be used.

To get connected to the Nokia Service Platform (NSP) platform, you need a browser and the NSP IP address. Then, you need the credentials to access the web-based interface (WebUI) for the NSP platform. Once you have these, you can access the NSP platform from a web browser.

QUESTION 20
Is it possible to select the fiber type independently for each segment while designing a network in EPT?

 Yes, during the link creation through the wizard

 No, a unique type is allowed per design for all segments

 No, as the fiber type is selected for links only and it’s one for whole design

 Yes, during the segment creation phase or editing

Yes, during the segment creation phase or editing. It is possible to select the fiber type independently for each segment while designing a network in EPT. This can be done during the segment creation phase or when editing an existing segment. This allows for more flexibility when designing the network and allows for more efficient use of resources.

QUESTION 21
Which of the following is an example of optical protection mechanism?

 Optical regeneration (e.g., back-to-back regeneration)

 OSNCP (e.g., via Y-cable or OPS card)

 GMPLS-enabled SBR

 GR and SBR combined

It can be implemented through the use of a Y-cable or an optical protection switch (OPS) card, which allows for the switching of traffic to a secondary path in the event of a failure on the primary path. This type of protection is commonly used to protect against fiber cuts and other types of physical layer failures in the optical transport network.

QUESTION 22
When monitoring the quality of the received signal in WDM, an open eye indicates:

 Low noise

 High distortion

 High jitter

 Presence of high inter-symbolic interference

An open eye pattern indicates that the signal is not affected by noise, and the received signal is of high quality. This is because an open eye pattern is the result of a signal that is aligned in time, and is not affected by noise or other distortions.
Reference:
“Optical Fiber Communications” by Gerd Keiser
“Fiber-Optic Communications Technology” by Djafar K. Mynbaev
“Optical Communications” by Gerd Keiser

QUESTION 23
Is it possible to modify node parameters within the edit EPT menu?

 Yes, the user can apply manual changes directly from this view

 Yes, but the user can modify only the node name and location

 No, this view is used to display a close-up view of the node

 Yes, the user can apply manual changes but only for non-GMPLS nodes, as the control plane reserves node resources not editable by the user

Yes, the user can apply manual changes but only for non-GMPLS nodes, as the control plane reserves node resources not editable by the user. The edit EPT menu allows the user to view information about a node but is not used to modify node parameters. The user can only apply manual changes to non-GMPLS nodes, as the control plane reserves node resources which cannot be modified by the user.

QUESTION 24
Which of the following applications is related to Wavelength Tracker tool?

 Collecting logs related to possible issue affecting a wavelength path

 Tracking the protection path for a specific wavelength

 Tracing the end-to-end wavelength optical power

 Correcting errors related to wavelength inconsistencies

Tracking the protection path for a specific wavelength. The Wavelength Tracker tool is used to track the protection path of a specific wavelength, allowing the user to quickly identify any issues that may arise and take corrective action.
Wavelength Tracker tool is a feature used to monitor and track the protection path for a specific wavelength in an optical network. It can also be used to monitor and verify the working state of the protection path, and to detect and troubleshoot protection switch events. The Wavelength Tracker tool can be used to monitor the protection path for a specific wavelength, and it can also be used to trace the end-to-end path of a wavelength through the network. This tool is typically used by network operators to monitor and troubleshoot wavelength-level issues in the network, such as protection switch events or wavelength-level performance issues.

QUESTION 25
With reference to the image, where is the OPS card placed to provide the OMSP protection?

 After the amplifiers

 Between the mux/demux and the amplifier

 Between the transponders and the mux/demux

 Before the transponder, on the client side, towards the external device

QUESTION 26
How are the EPT systems related to NFM-T when CPB is performed?

 The systems are not reported on CPB, as this Is transparent to the user and the whole network is validated and provisioned in one step

 The systems are displayed on the CPB panel, however they cannot be individually selected as they need to run all together

 The systems are displayed on the CPB panel and they can be individually selected

 The systems are not reported on CPB, but only through the Equipment Manager

The EPT systems are displayed on the CPB (Commissioning Parameter Builder) panel and they can be individually selected. This allows the user to configure the network elements in the network and provision them according to their specific requirements. The systems are not reported on CPB, but through the Equipment Manager. The Equipment Manager is the interface used to configure the network elements and the EPT systems. The NFM-T is not related to the CPB and does not affect the CPB process.

QUESTION 27
Which use case is most suitable for the deployment of a star topology?

 Access networks, for collecting traffic towards the main central node

 ASON networks, to protect traffic via GMPL5 protocols

 Backbone networks, for supporting protection routes

 SNCP-protected links

A star topology is a network design where all devices are connected to a central hub, which acts as a central point of control and management for the network. This type of topology is commonly used in access networks, where a central node is used to aggregate traffic from multiple users or devices, and then forward it to the core network. This design allows for efficient use of resources and easy management of the network.
Reference:
“Computer Networking: A Top-Down Approach” by James Kurose and Keith Ross (Chapter 3)
“Data Communications and Networking” by Behrouz A. Forouzan (Chapter 2)

QUESTION 28
What is the function of a pre-amplifier in an optical network?

 Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.

 Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.

 Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.

 Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

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.

QUESTION 29
What is the metro area network?

 The metro area network is that portion of network that passes through a city to provide connections to several customers.

 The metro area network is located between access and core domains.

 The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.

 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).

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

QUESTION 30
Is it possible to open and manage EPT designs that are created with different releases than the release installed on the local workstation?

 Only designs created with the current release can be opened and edited.

 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 cannot make changes.

 No restrictions are imposed on the software release.

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.

QUESTION 31
Which application generates the commissioning file(s)?

 NFM-T

 NSP

 CPB

 EPT

The CPB (Commissioning Parameter Builder) application is used to generate the commissioning files for a Nokia 1830 Photonic Service Switch (PSS-1). The CPB application allows the user to create multiple commissioning files [1][2], which can be used to configure a variety of different features on the device. The CPB also allows users to view, edit and modify the commissioning files before they are uploaded to the device. The NSP (Network Service Platform) and EPT (Element Provisioning Tool) are used to manage the devices and network elements within the network, but do not generate commissioning files.

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