[Oct-2023] 4A0-205 Braindumps – 4A0-205 Questions to Get Better Grades
4A0-205 Exam Dumps - Try Best 4A0-205 Exam Questions - SurePassExams
NEW QUESTION # 11
Which statement is correct about node synchronization?
- A. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
- B. Full synchronization retrieves the correlated alarms from the node
- C. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
- D. Node synchronization is executed to test the reachability of a node
Answer: A
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 # 12
What is a trail?
- A. An entity to encapsulate a low order signal into a high order container
- B. A transparent transport of a client signal
- C. A physical link between two optical amplifiers
- D. A link between end points to increase the power budget of the optical link
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 # 13
With reference to trails and services, which of the following sentences is correct?
- A. A trail can interconnect three ports, while a service always two.
- B. Trails are transported over services; that is, trails are clients with respect to services.
- C. A service is always associated to a single wavelength, while a trail can involve multiple wavelengths.
- D. Services are transported over trails; that is, services are clients with respect to trails.
Answer: D
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 # 14
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 # 15
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 # 16
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 # 17
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 # 18
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 # 19
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 # 20
Which of the following are the main reasons for fiber attenuation?
- A. Refraction and reflection
- B. Small channel spacing
- C. Chromatic dispersion (CD) and polarization mode dispersion
- D. Scattering and absorption
Answer: D
Explanation:
Scattering and absorption are the main reasons for fiber attenuation. Scattering occurs when light bounces off the sides of the fiber, while absorption happens when light is absorbed by the glass or other materials that make up the fiber. Chromatic dispersion (CD) and polarization mode dispersion (PMD) are also factors that can cause attenuation, but they are not the main causes. Small channel spacing can also cause attenuation, but it is a secondary factor and is only significant in certain cases.
NEW QUESTION # 21
How is it possible to check the activation status of GMRE on a node?
- A. The ControlPlane status column on the node list displays the GMRE status for the selected node
- B. The GMRE activation status is reflected on the color of the icon representing the node
- C. The GMRE activation status is reported in the supervision state column on the node list
- D. The GMRE reachability can be tested via ping request from NFM-T
Answer: C
Explanation:
The GMRE activation status is reported in the supervision state column on the node list. The supervision state column displays the GMRE status of the node, which is either "Activated" or "Not Activated". This allows the user to quickly check the GMRE activation status of a node without having to ping the node from the NFM-T platform.
NEW QUESTION # 22
What is the purpose of the NFM-T node synchronization?
- A. The partial or full node synchronization allows several entities/items defined at EPT level to be retrieved into the NFM-T database (upload from design).
- B. The partial or full node synchronization allows several entities/items defined at node level to be retrieved into the NFM-T database (upload).
- C. The partial or full node synchronization allows several entities/items defined at NFM-T level to be written into the node database (download).
- D. The partial or full node synchronization allows several entities/items defined at NFM-T level to be exported into an XML file, to be used as input for EPT (download to design).
Answer: C
Explanation:
This is done in order to keep the NFM-T database in sync with the nodes in the network. The synchronization process allows the NFM-T to keep track of any changes that are made to the nodes, such as new nodes added, nodes removed, and so on. By synchronizing the node database with the NFM-T, network administrators can ensure that their network is up to date and running efficiently.
NEW QUESTION # 23
In which window(s) does the attenuation reach its minimum peak?
- A. Both first and second windows
- B. First window (850 nm)
- C. Second window (1300 nm)
- D. Third window (1550 nm)
Answer: D
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 # 24
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 # 25
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 # 26
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 # 27
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 # 28
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