Which two are true about RMAN duplexed backup sets? (Choose two.)

• A. A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.
• B. A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.
• 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 SBT can be duplexed to disk by backing up the backup set that is already on tape.
• E. A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.
• F. A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.

Examine the command for creating pluggable database PDB2 in container database CDB2.

Select three options, any one of which is required for it to execute successfully. (Choose three.)

• A. Set only the PDB_FILE_NAME_CONVERT parameter.
• B. Enable only OMF.
• C. Add the FILE_NAME_CONVERT clause to the statement and set the
  PDB_FILE_NAME_CONVERT parameter.
• D. Add the FILE_NAME_CONVERT clause to the statement and enable Oracle Managed Files (OMF)
• E. Set the PDB_FILE_NAME_CONVERT parameter and enable OMF.
• F. Add only the CREATE_FILE_DEST clause to the statement.

A redaction policy was added to the SALcolumn of the SCOTT.EMPtable:

All users have their default set of system privileges.
For which three situations will data not be redacted? (Choose three.)

• A. SCOTT sessions, because he is the owner of the table
• B. SCOTT sessions, only if the MGR role is set in the session
• C. SCOTT sessions, only if the MGR role is granted to SCOTT
• D. SYSTEM session, only if the MGR role is set in the session
• E. SYSTEM sessions, regardless of the roles that are set in the session
• F. SYS sessions, regardless of the roles that are set in the session

Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup?

• A. Oracle wallet for the encryption must be set up.
• B. All the tablespaces in the database must be encrypted
• C. Oracle Database Vault must be enabled.
• D. The password for the encryption must be set up.