A.Single-byte character sets provide better performance than multibyte character sets.

B.Unicode enables information from any language to be stored using a single character set.

C.Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).

D.Single-byte character sets always use 7-bit encoding schemes.

E.Multibyte character sets allow more efficient space utilization than single byte character sets.

F.Single-byte character sets always use 8-bit encoding schemes.

A.V$SESSION_EVENT

B.V$SESSTAT

C.V$SESSION_WAIT

D.V$SESSION_WAIT_CLASS

E.V$SESSION

A.Only consistent backups can be created.

B.Backups must be done incrementally.

C.Backups can be done incrementally.

D.Backups must be contained in backup sets.

E.Backups can be taken only if the database is in ARCHIVE LOG mode.

F.The database must be registered in an RMAN catalog.

A.By default, the transported database will use Oracle Managed Files (OMF)

B.Data files can be converted on the destination system.

C.Data files can be converted on the source system.

D.A new DBID is automatically created for the transported database.

E.Databases can be transported between systems with different endian formats.

F.The password file is automatically converted by RMAN.

A.It Increases tablespace size, if required, to meet upgrade requirements.

B.It empties the recycle bin.

C.It sets all user tablespaces to "read-only" before starting the upgrade.

D.It recompiles all stored pl/sql code by using utlrp.sql.

E.It removes the audsys schema and the audit_admin and audit_viewer roles.

F.It performs prerequisite checks to verify if the Oracle database is ready for upgrade.