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Nokia 4A0-205 Actual Questions and Braindumps
The Nokia 4A0-205 exam is an industry-recognized certification that validates the fundamental knowledge and skills required for optical networking. This certification exam is designed for individuals who are interested in pursuing a career in the field of optical networking, or for those who are already working in the industry and want to enhance their knowledge and skills. The Nokia Optical Networking Fundamentals certification is a globally recognized credential that demonstrates the ability of the candidate to understand and apply the concepts of optical networking in real-world scenarios.
The Nokia 4A0-205 (Nokia Optical Networking Fundamentals) exam is an important certification for professionals seeking to demonstrate their knowledge of optical networking. This certification can provide a competitive edge in the telecommunications industry and help professionals advance their careers. With proper preparation and study, candidates can increase their chances of passing the exam and obtaining this valuable certification.
NEW QUESTION # 22
Which statement is correct about the NFM-T network map?
- A. It allows the graphical visualization of the services deployed in the network with the details of the boards involved in the service.
- B. It automatically represents all nodes grouped by the location string assigned during the NE creation.
- C. It represents all supervised nodes grouped by alarm status (with a different color).
- D. It allows context sensitive navigation and represents nodes and related physical connections with different colors. depending on the active alarms.
Answer: D
Explanation:
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.
NEW QUESTION # 23
Which application generates the commissioning file(s)?
- A. EPT
- B. CPB
- C. NFM-T
- D. NSP
Answer: B
Explanation:
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.
NEW QUESTION # 24
Which of the following sentences about FlexGrid is false?
- A. Channels in FlexGrid systems are allocated with a granularity of 27.5GHz.
- B. FlexGrid allows a more efficient channel spacing.
- C. FlexGrid systems use specific sets of boards. Old generation WDM systems need to be upgraded to support FlexGrid.
- D. The FlexGrid is currently standardized by ITU-T.
Answer: C
Explanation:
FlexGrid is a flexible grid technology that allows for variable channel spacing and bandwidth allocation. It uses the same sets of boards as the traditional fixed grid systems and it does not require upgrading the old generation WDM systems.
Reference:
"Flexible Grid Optical Networks: From Concepts to Realizations" by Diomidis S. Michalopoulos and George K. Karagiannidis
"Flexible Grid and Flexible Spectrum Optical Networks" by Diomidis S. Michalopoulos and George K. Karagiannidis
"Flexible Grid Optical Networks" by Diomidis S. Michalopoulos and George K. Karagiannidis
NEW QUESTION # 25
Which of the following is an example of optical protection mechanism?
- A. OSNCP (e.g., via Y-cable or OPS card)
- B. GMPLS-enabled SBR
- C. GR and SBR combined
- D. Optical regeneration (e.g., back-to-back regeneration)
Answer: A
Explanation:
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.
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 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 # 27
What does it take to get connected to the NSP platform?
- A. A browser and the NSP IP address; and from the landing page, the NSP application should be downloaded and launched.
- B. A browser, the NSP IP address, and the credentials to access the web-based interface (WebUI).
- C. The NSP package should be downloaded from the Nokia website and properly licensed for the specific workstation to be used.
- D. 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.
Answer: B
Explanation:
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.
NEW QUESTION # 28
Which of the following applications is related to Wavelength Tracker tool?
- A. Correcting errors related to wavelength inconsistencies
- B. Tracing the end-to-end wavelength optical power
- C. Collecting logs related to possible issue affecting a wavelength path
- D. Tracking the protection path for a specific wavelength
Answer: D
Explanation:
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.
NEW QUESTION # 29
In which window(s) does the attenuation reach its minimum peak?
- A. Both first and second windows
- B. Third window (1550 nm)
- C. First window (850 nm)
- D. Second window (1300 nm)
Answer: B
Explanation:
The third window (1550 nm) is where the attenuation reaches its minimum peak. This is because the materials used in fiber optic cables have minimal absorption in this wavelength range. The first and second windows (850 nm and 1300 nm respectively) have higher attenuation due to the materials used in the fiber optic cables.
NEW QUESTION # 30
With reference to the image, where is the OPS card placed to provide the OMSP protection?
- A. After the amplifiers
- B. Between the transponders and the mux/demux
- C. Before the transponder, on the client side, towards the external device
- D. Between the mux/demux and the amplifier
Answer: C
NEW QUESTION # 31
Which of the following statements is true about chromatic dispersion (CD)?
- A. Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.
- B. Different channels have different bandwidth and this causes different CD performances.
- C. The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.
- D. The fiber attenuation introduces inter-channel interference.
Answer: A
Explanation:
Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed. This phenomenon is known as chromatic dispersion and causes light to spread out as it travels through the fiber over distance, leading to signal attenuation and distortion. The fiber attenuation does not introduce inter-channel interference, but it can cause attenuation of the signal. Different channels have different bandwidths, but this does not affect CD performance.
NEW QUESTION # 32
Which statement is correct about node synchronization?
- A. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
- B. Node synchronization is executed to test the reachability of a node
- C. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
- D. Full synchronization retrieves the correlated alarms from the node
Answer: C
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 # 33
Which use case is most suitable for the deployment of a star topology?
- A. Access networks, for collecting traffic towards the main central node
- B. ASON networks, to protect traffic via GMPL5 protocols
- C. Backbone networks, for supporting protection routes
- D. SNCP-protected links
Answer: A
Explanation:
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)
NEW QUESTION # 34
Which statement is correct about node synchronization?
- A. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
- B. Node synchronization is executed to test the reachability of a node
- C. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
- D. Full synchronization retrieves the correlated alarms from the node
Answer: C
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 # 35
When monitoring the quality of the received signal in WDM, an open eye indicates:
- A. Presence of high inter-symbolic interference
- B. High jitter
- C. Low noise
- D. High distortion
Answer: C
Explanation:
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
NEW QUESTION # 36
What is the metro area network?
- A. 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).
- B. The metro area network is located between access and core domains.
- C. The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.
- 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 # 37
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. No, as they are not compatible and cannot be used within the same node
- C. Yes, but the PSS-24X shelf must be configured as a master
- D. Yes, but the PSS-8X shelf must be configured as a master
Answer: B
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 # 38
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