--backup=<backup ID>
Identifier of the backup with which the operation is to be performed (for example, the backup from which the data is to be recovered).
With the export backup, consolidate backup and replicate backup commands, you can specify several backups.
If the parameter is not specified, the operation will be applied to the latest backup. However, you must specify this parameter with the recover exchange_database and recover exchange_mailbox commands, if the --recovery_point parameter value is selected_backup.