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 # 7
Which of the following statements is true about chromatic dispersion (CD)?
A.
Different channels have different bandwidth and this causes different CD performances.
B.
The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.
C.
Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.
D.
The fiber attenuation introduces inter-channel interference.
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.
Question # 8
How is it possible to check the activation status of GMRE on a node?
A.
The GMRE reachability can be tested via ping request from NFM-T
B.
The ControlPlane status column on the node list displays the GMRE status for the selected node
C.
The GMRE activation status is reported in the supervision state column on the node list
D.
The GMRE activation status is reflected on the color of the icon representing the node
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.
Question # 9
What is the purpose of the NFM-T node synchronization?
A.
The partial or full node synchronization allows several entities/items defined at node level to be retrieved into the NFM-T database (upload).
B.
The partial or full node synchronization allows several entities/items defined at NFM-T level to be written into the node database (download).
C.
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).
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).
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.
Question # 10
Where is the OPS card equipped to provide the optical channel protection?
A.
Between the transponder and the amplifiers
B.
Between the filters and the amplifiers
C.
Before the transponder, on the clientside, towards the external device
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.
Question # 11
What is a degree-1 node?
A.
A node with only one direction and therefore a terminal node
B.
A node with only one express channel and therefore made of two sides
C.
A node with only east and west sides without directions towards north and south
D.
A node with one direction only and therefore used as In-Line-Amplifier (ILA)
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.
Question # 12
Which statement is correct about node synchronization?
A.
Full synchronization retrieves the correlated alarms from the node
B.
Node synchronization is executed to test the reachability of a node
C.
Node synchronization is executed to align the time of the node to the time of the NFM-T platform
D.
Full synchronization retrieves all items from the node (NE parameters.Ports, Alarms, Internal Links,etc)
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.
