A. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.

B. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.

C. After the change, only one undo tablespace can exist in CDB$ROOT.

D. After the change, any user with the required privilege can create an undo tablespace in the PDBs.

E. Undo tablespaces existing in PDBs must be dropped before the change.

F. After the change, each existing PDB has to be reopened for the new undo mode to take effect.

A. It can contain multiple applications.

B. It must have an application root PDB.

C. It can contain a single application

D. An application PDB can belong to multiple application containers.

E. Two application containers can share an application seed PDB.

F. It must have an application seed PDB.

A. No catalogued backup of the TARGET is used to duplicate the database.

B. Itsucceeds only if the target database is greater than 400M.

C. It succeeds.

D. It fails because no parallel channels are allocated for the auxiliary database.

E. It fails because connection to the AUXILIARY instance must be as SYSDBA.

A. The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.

B. The database must be in MOUNT state when performing Database Point-in-Time Recovery.

C. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)

D. The Database must be in ARCHIVELOG mode.

E. The target point for the recovery must be specified as a stime or System Change Number (SCN).

F. The database must be open RESETLOGS after Database Point-in-Time Recovery.

A. It can be used only for Oracle Grid Infrastructure, excluding Oracle Restart.

B. It can be used for applications and middleware.

C. It can be used for both Oracle Database and Oracle Grid Infrastructure, including Oracle Restart.

D. It can be used for both Oracle Database and Oracle Grid Infrastructure, excluding Oracle Restart.

E. It can be used only for Oracle Grid Infrastructure, including Oracle Restart.