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 determines which archived redo logs to back up by querying the target database's control file, which contains a complete record of all archived logs. When a recovery catalog is used, RMAN can also access that repository for this information. RMAN doesn't use text files (option A), require manual specification (option B), or simply backup everything in ARCHIVE_LOG_DEST without checking (option D) - it intelligently tracks which logs are needed based on the control file's repository.

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