Which item is wrong about the description of PTN network MC-PWAPS protection features?

1+1 mode is not supported
DNI-PW can only be used to transmit base station traffic
DNI-PW supports multi-hop, but single-hop PW is recommended for service deployment
The existing network is generally not linked with MCLAG

Answer(s): B

Regarding PW labels and tunnel labels, which of the following statements are correct?

PW labels are mainly used to distinguish PWs, but for CES services, because CES services do not support aggregation, there is no need to use PW labels
Tunnel label is mainly used for transmission in the tunnel, it mainly uses the tunnel label to establish MPLS tunnel
They are all based on MPLs tags
PW signing only needs negotiation between the source and sink network elements, and has nothing to do with the intermediate tansit network elements

Answer(s): B,C,D

Regarding the function of backing up and restoring all data in the network management database, which of the following statements is correct?

Data backed up by different versions and different types of operating systems can be recovered from each other
Data backed up by different versions and different types of operating systems cannot be recovered from each other
The data of the same version and the same type of database backup cannot be recovered from each other
Data from different versions and different types of database backups can be recovered from each other

Answer(s): B

Regarding the operation of deleting the path from the network management, which of the following statements is wrong?

Deleting a trail from the network layer only deletes the WDM trail at the network layer on the NMS side
Delete the path from the NE layer. Delete the path on the NE side and the NE layer together.
Once the network layer deletes the trail, the service will not be interrupted
After the path is deleted from the network layer and the network element, the service will be interrupted

Answer(s): D

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