[Jan-2024] Nokia 4A0-205 Test Engine PDF - All Free Dumps from Prep4SureReview
Get New 4A0-205 Certification – Valid Exam Dumps Questions
NEW QUESTION # 16
With reference to trails and services, which of the following sentences is correct?
- A. Trails are transported over services; that is, trails are clients with respect to services.
- B. A trail can interconnect three ports, while a service always two.
- C. Services are transported over trails; that is, services are clients with respect to trails.
- D. A service is always associated to a single wavelength, while a trail can involve multiple wavelengths.
Answer: C
Explanation:
Services are transported over trails; that is, services are clients with respect to trails. A service is a logical connection that is used to transport data from one point to another. It is created over a trail, which is a physical connection that is established by using multiple wavelengths. As such, services are clients with respect to trails, as they are transported over them.
NEW QUESTION # 17
What is a trail?
- A. A link between end points to increase the power budget of the optical link
- B. A transparent transport of a client signal
- C. An entity to encapsulate a low order signal into a high order container
- D. A physical link between two optical amplifiers
Answer: B
Explanation:
A trail is a transparent transport of a client signal. A trail is a physical link between two points in an optical network, allowing for the transport of a client signal from one point to the other. It is a low-order signal, such as a 10G Ethernet or a Fibre Channel signal, encapsulated into a high-order container, such as a 40G or 100G signal. This allows for the transport of the client signal over longer distances, increasing the power budget of the optical link.
NEW QUESTION # 18
What is the metro area network?
- A. The metro area network is that portion of network that passes through a city to provide connections to several customers.
- 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 made of OCS/SWDM nodes only, as no pure photonic nodes are used here.
Answer: A
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 # 19
Where can the user set the long-haul WT decoder parameter, when designing a network with EPT?
- A. In the audit menu
- B. In the NE parameters
- C. In the network parameters
- D. In the optimization parameters
Answer: B
Explanation:
The long-haul WT decoder parameter can be set in the NE parameters when designing a network with EPT. This parameter is used to adjust the sensitivity of the decoder and can help to improve the accuracy of the measurements for long-haul WTs.
The Network Element (NE) parameters in EPT (Element Planning Tool) are used to configure various settings and options for the network elements in the network. The long-haul WT decoder parameter is one such setting that can be configured in the NE parameters section. The user can access the NE parameters by navigating to the NE Parameters menu within the EPT interface. The user can then select the appropriate network element and modify the settings as needed. This information can be found in the Nokia guide for EPT.
NEW QUESTION # 20
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. Tracking the protection path for a specific wavelength
- D. Collecting logs related to possible issue affecting a wavelength path
Answer: C
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 # 21
What is the definition of OSNR?
- A. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
- 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 defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
- 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 # 22
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 # 23
Which sentence about NFM-T is correct?
- A. NFM-T fully supports optical and IP nodes
- B. NFM-T is used to provision optical services having IP nodes as extremities
- C. 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
- D. NFM-T is used to design and manage optical network
Answer: B
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 # 24
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 # 25
By using the EPT run design command, are the previously designed elements removed?
- A. Yes, although this is not happening in case of GMPLS-enabled nodes because existing slots cannot change as they are controlled by another manager (GMRE).
- B. It depends, the user is prompted to choose whether to delete or leave the previously designed elements.
- C. Yes, they are but only the first time the command is launched as - for future design phases - the existing packs need to keep the same slotting.
- D. Not the design is always progressive, on top of the previous design.
Answer: B
Explanation:
The EPT run design command can remove previously designed elements, but the user is prompted to choose whether to delete them or leave them intact. This allows the user to progress their design while still keeping the existing elements in place. If the user selects to leave the existing elements, then they will remain in the same slots. If GMPLS nodes are used, the existing slots cannot change as they are controlled by another manager (GMRE).
NEW QUESTION # 26
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 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 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 # 27
What is the purpose of the validate step in the EPT design process?
- A. During this step, the configuration available on the involved network elements is compared with the design provided by EPT.
- B. This step is optional and is useful to verify the network element layout before going through the commission step.
- C. During this step, the run design action is triggered for network design consistency check and errors fixing.
- D. This step is used to measure optical power performances over an existing network before making changes.
Answer: C
Explanation:
The validate step in the EPT design process is used to trigger the run design action, which is responsible for verifying the consistency of the network design and fixing any errors that may exist. During the validation process, the system will compare the configuration available on the involved network elements and the design provided by EPT, and any discrepancies will be flagged for further investigation or correction.
NEW QUESTION # 28
What is the OAMP LAN interface?
- A. It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management
- B. 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)
- C. It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs
- D. It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)
Answer: A
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 # 29
What is a degree-1 node?
- A. A node with only one direction and therefore a terminal node
- 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 east and west sides without directions towards north and south
Answer: A
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 # 30
WDM allows transmission systems to:
- A. Allocate different signals to different time slots
- B. Increase the bit rate of each client signal by spreading it over multiple wavelengths
- C. Transport multiple signals transparently, onto several wavelengths, all together over one single fiber
- D. Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission
Answer: C
Explanation:
WDM (Wavelength Division Multiplexing) allows transmission systems to transport multiple signals transparently, onto several wavelengths, all together over one single fiber. This allows for increased capacity, as many different signals can be transmitted at the same time and along the same fiber. Other advantages include improved signal integrity and reduced signal attenuation.
NEW QUESTION # 31
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. Logs report both active and historical events.
- D. Alarms and conditions report only historical status of the node.
Answer: C
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 # 32
Where is the OPS card equipped to provide the optical channel protection?
- A. Between the filters and the amplifiers
- B. Between the transponder and the amplifiers
- C. Between the transponder and the filter
- D. Before the transponder, on the client side, towards the external device
Answer: B
Explanation:
According to the Nokia's 1830 Photonic Service Switch (PSS) product documentation, the Optical Protection Switching (OPS) card is equipped in the transponder and is responsible for providing optical channel protection between the transponder and the amplifiers. The OPS card monitors the optical signal and switches to a pre-configured protection path in case of signal degradation or loss.
NEW QUESTION # 33
......
100% Passing Guarantee - Brilliant 4A0-205 Exam Questions PDF: https://www.prep4surereview.com/4A0-205-latest-braindumps.html
4A0-205 Dumps 2024 - NewNokia Exam Questions: https://drive.google.com/open?id=1kYrObnFPhKMR66p3NLXZMOJHmC-zJz_y
