Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)
A.Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be started and the databased be in the MOUNT state. B.Backing up a database in ARCHIVE LOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state. C.An Oracle database can be restored from backup files copied using O/S utilities. D.Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES. E.Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down. F.Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set. G.Backing up a database in ARCHIVE LOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.正确答案CDE
