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Oracle Database: Backup, Recovery and Performance Tuning

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Multiple Choice

Which of the following is/are true about incremental back up of RMAN in oracle database recovery?

  1. It includes all used data blocks in the datafiles.
  2. It includes a backup of datafiles that includes only the blocks that have changed since a previous incremental backup.
  3. Incremental backups of control files and archived logs always include all blocks in the files.
  4. Incremental backups require a full or incremental level 0 backup to serve as a basis.
  5. Both (2) and (4)
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