[Aug 23, 2023] New Real 4A0-205 Exam Dumps Questions
Pass Your 4A0-205 Exam Easily with Accurate Nokia Optical Networking Fundamentals PDF Questions
NEW QUESTION # 11
What is the metro area network?
- A. The metro area network is located between access and core domains.
- B. The metro area network is that portion of network that passes through a city to provide connections to several customers.
- 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 located in between two access area networks and made of photonic nodes only (no OCS/SWDM nodes are used there).
Answer: B
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 # 12
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 one direction only and therefore used as In-Line-Amplifier (ILA)
- C. A node with only one express channel and therefore made of two sides
- D. A node with only one direction and therefore a terminal node
Answer: D
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 # 13
Is it possible to mix PSS-24x and PSS-8x shelves In an SWDM configuration?
- A. No, as they are not compatible and cannot be used within the same node
- B. Yes, but the PSS-8X shelf must be configured as a master
- C. Yes, as both can be equipped within the same node
- D. Yes, but the PSS-24X shelf must be configured as a master
Answer: A
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 # 14
Which application generates the commissioning file(s)?
- A. NSP
- B. CPB
- C. NFM-T
- D. EPT
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 # 15
Which macro steps can be executed via CPB?
- A. Power adjustment and generation of the system loss report
- B. Systems validation, system provisioning, power adjustment
- C. Node creation, systems validation and system provisioning
- D. Node supervision, system validation and system provision
Answer: C
Explanation:
Node creation, systems validation and system provisioning. The CPB (Commissioning Parameter Builder) application is used to generate commissioning files for a Nokia 1830 Photonic Service Switch (PSS-1) and can be used to create new nodes, validate the system configuration, and provision the system with the appropriate settings and parameters. Power adjustment and generation of system loss report are not related to CPB.
NEW QUESTION # 16
What is the function of a pre-amplifier in an optical network?
- A. Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.
- B. Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.
- C. Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.
- D. Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.
Answer: A
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 # 17
A user needs to check for interface details against the commands is the correct one?
- A. config interface detail 1/17/L1
- B. 11starla 1/17 port-detail
- C. show interface 11starla 1/17/L1 detail
- D. config card 11star1a interface 1/17 detail
Answer: C
Explanation:
show interface 11starla 1/17/L1 detail is the correct command to check for interface details. This command will display detailed information about the specified interface, including its status, configuration, and statistics.
NEW QUESTION # 18
Is it possible to modify node parameters within the edit EPT menu?
- A. 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
- B. No, this view is used to display a close-up view of the node
- C. Yes, the user can apply manual changes directly from this view
- D. Yes, but the user can modify only the node name and location
Answer: A
Explanation:
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.
NEW QUESTION # 19
Which of the following statements is true?
- A. Logs report a real time status of the node.
- B. Alarms and conditions report a real time status of the node.
- C. Alarms and conditions report only historical status of the node.
- D. Logs report both active and historical events.
Answer: D
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 # 20
With reference to the image, where is the OPS card placed to provide the OMSP protection?
- A. After the amplifiers
- B. Before the transponder, on the client side, towards the external device
- C. Between the mux/demux and the amplifier
- D. Between the transponders and the mux/demux
Answer: B
NEW QUESTION # 21
Which of the following is an example of optical protection mechanism?
- A. GR and SBR combined
- B. OSNCP (e.g., via Y-cable or OPS card)
- C. GMPLS-enabled SBR
- D. Optical regeneration (e.g., back-to-back regeneration)
Answer: B
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 # 22
What is the definition of OSNR?
- A. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
- B. 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.
- 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 average optical signal power and the average optical noise power over a specific spectral bandwidth.
Answer: D
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
What does it take to get connected to the NSP platform?
- A. A browser, the NSP IP address, and the credentials to access the web-based interface (WebUI).
- B. A browser and the NSP IP address; and from the landing page, the NSP application should be downloaded and launched.
- 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: A
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 # 24
What is the OAMP LAN interface?
- A. It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs
- B. It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)
- C. It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management
- D. It is an RJ-45 interface (common Ethernet port) used to connect one or more client ports (e.g., 1Gb/s or legacy 100Mbit/s client flows)
Answer: C
Explanation:
It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management. This interface is used to connect the OAMP node to the LAN, allowing it to be managed and monitored remotely.
NEW QUESTION # 25
Is it possible to select the fiber type independently for each segment while designing a network in EPT?
- A. No, a unique type is allowed per design for all segments
- B. Yes, during the link creation through the wizard
- C. No, as the fiber type is selected for links only and it's one for whole design
- D. Yes, during the segment creation phase or editing
Answer: D
Explanation:
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.
NEW QUESTION # 26
How does a Raman pump work in the 1830 specific implementation?
- A. The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.
- B. The amplification is done simultaneously for all channels as they enter the board.
- C. The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.
- D. As the incoming signal power increase, the gain of the amplifier is reduced.
Answer: A
Explanation:
In Raman amplification, a pump laser is used to excite the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. In the 1830 specific implementation, the pump laser is typically a high-power laser that is launched into the fiber in the opposite direction to the signal. The pump light interacts with the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. This allows the Raman pump to provide a gain that increases with distance, which can be used to compensate for the loss of signal power as it travels through the fiber.
NEW QUESTION # 27
Which sentence about NFM-T is correct?
- A. NFM-T is used to provision optical services having IP nodes as extremities
- B. NFM-T fully supports LO, LI, L2 and GMPLS applications and it is mainly focused on 1830 PSS, as well as other older product families
- C. NFM-T fully supports optical and IP nodes
- D. NFM-T is used to design and manage optical network
Answer: A
Explanation:
NFM-T is a network management system designed to manage optical networks in a unified manner. It is used to design, manage, and provision optical services having IP nodes as extremities. It supports a variety of technologies, including optical and IP, and fully supports LO, LI, L2, and GMPLS applications. It is mainly focused on the Nokia 1830 PSS product family, as well as other older product families.
NEW QUESTION # 28
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One of the key areas covered by the Nokia 4A0-205 exam is the fundamentals of optical networking. This includes topics such as optical transmission systems, optical network design, and optical network management. 4A0-205 exam also covers advanced topics such as wavelength division multiplexing (WDM) and optical switching.
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