Which two are true about RMAN encryption? (Choose two.)
A.RMAN encryption keys are stored in a database keystore. B.RMAN can encrypt the Oracle Database password file. C.Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available. D.The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command. E.Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.正确答案AD