Which of the following statements about the open protocol of the NDMP for network backup is independent of the platform data storage?
A . The NAS device that supports the NDMP protocol can directly communicate with the backup server without installing the backup software client on the NAS device.
B . When the NDMP protocol is used, the backup software, NAS devices, backup media, and production servers must support the NDMP protocol.
C . During the backup, the NAS device transfers files and directories related to the backup media to the backup server. The backup server prepares indexes for maintenance.
D . Backup data can be read from NAS storage devices and backed up to backup media instead of production servers. This reduces the workload on production servers.
Answer: A