You use RMAN to back up a database which uses Automatic Storage Management (ASM) and you use the MD_BACKUP command to back up the ASM metadata regularly.
You lose an ASM disk group DG1 due to a hardware failure.
In which two ways can you re-create the lost disk group and restore the data? (Choose two.)
A. Use RMAN to restore both the metadata and the data.
B. Use the MKDG command to add a new disk group DG1 with the same or different specifications as those from the lost disk group and use RMAN to restore the data.
C. Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.
D. Use the MD_RESTORE command to restore the disk group metadata and use RMAN to restore the data.
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