Oracle
1Z0-062 · Question #178
1Z0-062 Question #178: Real Exam Question with Answer & Explanation
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Question
You performed an incremental level 0 backup of a database: RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable block change tracking after the incremental level 0 backup, you issued this command: SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ` /mydir/rman_change_track.f'; To perform an incremental level 1 cumulative backup, you issued this command: RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which three statements are true?
Options
- ABackup change tracking will sometimes reduce I/O performed during cumulative incremental
- BThe change tracking file must always be backed up when you perform a full database backup.
- CBlock change tracking will always reduce I/O performed during cumulative incremental backups.
- DMore than one database block may be read by an incremental backup for a change made to a
- EThe incremental level 1 backup that immediately follows the enabling of block change tracking will
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