フリー問題

問題文

The fast recovery area of a production database holds the recent backups and the archived logs, and the auditors ask for a copy of its contents on tape. Which statement describes what the backup of that area covers?

選択肢

1. The operation copies the recovery files that are held in that area to another disk inside the same area, so the files that were written there by earlier operations are protected against a single block corruption.
2. The operation copies the data files of the database into that area first, so the files that are protected are the ones that the database is currently using for its own work.
3. The operation copies the control file and the parameter file alone, so the files that are protected are the ones that describe the structure rather than the contents of the database.
4. The operation copies the recovery files that are held in that area to a tape device, so the files that were written there by earlier operations are protected against the loss of the area itself.