Send control instructions through the backup server, first make a snapshot (or other similar operations) of the data volume to be backed up to form a copy, then use the backup server to mount the…

Send control instructions through the backup server, first make a snapshot (or other similar operations) of the data volume to be backed up to form a copy, then use the backup server to mount the snapshot volume, and use the backup server to mount the data on this volume Back up to a backup device. What type of backup network does the above workflow describe?