Multiple choice

When allowing RMAN to backup archived redo log files, how does RMAN know which archived redo logs to back up from the archive log destination?

  1. RMAN keeps a list of archived logs in a text file.

  2. The DBA must manually tell RMAN which archive logs to backup.

  3. RMAN has access to target control file and/or catalog information.

  4. RMAN looks at the ARCHIVE_LOG_DEST parameter of the target database and backs up all archive logs found.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

RMAN maintains metadata about which archived redo logs have been backed up in the target database's control file and/or the recovery catalog. When you issue a BACKUP ARCHIVELOG command, RMAN queries this metadata to identify which archived logs need backing up and automatically selects them without requiring manual specification.

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