A.A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.

B.A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.

C.A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set that is already on disk.

D.A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.

E.A non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set that is already on tape.

F.A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.

A.FLASHBACK TRANSACTION

B.FLASHBACK VERSION QUERY

C.FLASHBACK DATA ARCHIVE

D.FLASHBACK TABLE

E.FLASHBACK DATABASE

A.It can be used to create container databases and non-container databases.

B.It can be used to change the character set of an existing database.

C.It can only be launched from the command line interface.

D.It can be launched from both the command line and the Universal Installer (OUI) interfaces.

E.It can be used to convert a non-container database to a container database.

A.The Oracle Database time model should be used to find the database and instance areas most in need of tuning.

B.The database instance memory should always be tuned before tuning any file systems.

C.Tuning activities should stop once the user is satisfied with performance.

D.SQL statements should always be tuned before tuning any file systems.

E.Tuning activities should stop once agreed service levels for performance have been met.

F.The alert log should be used to find the database and instance areas most in need of tuning.

A.It helps to track encryption keys and implement requirements such as keystore password rotation and master encryption key reset or re-key operations.

B.It handles encrypted data without modifying applications.

C.It enables separation of duties between the database administrator and the security administrator.

D.It facilitates and helps to enforce keystore backup requirements.

E.It enables a keystore to be stored only in a file on a file system.

F.It transparently decrypts data for the database users and applications that access this data.