A.The four sections must be contained in backup sets.

B.The four sections can be created in parallel.

C.The four sections can be created serially.

D.Each of the file sections must be processed serially.

E.The four sections must be image copies.

A.the number of data files containing extents belonging to tables updated by a transaction

B.issuing multiple savepoints during a transaction

C.poorly trained users who do not commit transactions

D.poorly written SQL

E.the number of tablespaces containing tables updated by a transaction

A.A default service is created for the application root APP1.

B.An application root PDB is created for APP1.

C.APP1can never be unplugged.

D.Application PDBs that are subsequently created in the APP1application container will be cloned from APP1$SEED.

E.An application seed PDB is created for APP1.

F.Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.

A.The solution that best optimizes one SQL statement can degrade the performance of others.

B.Poorly performing SQL statements can be tuned automatically by the Oracle server.

C.SQL statements performing many physical I/Os can always have their performance improved by creating indexes.

D.SQL statements doing joins always do more physical I/O than single table queries.

E.SQL statements doing only logical reads never require tuning because they do no physical I/O.

A.A user with sysdba or sysbkup must be logged in with RMAN to the PDB to duplicate it.

B.The auxiliary Instance is automatically created with enable_pluggable_database = true.

C.Two or more PDBs can be duplicated with the same rmak duplicate command.

D.cdb$root and pdbSseed are automatically duplicated.

E.All tablespaces belonging to a PDB must be duplicated when duplicating the PDB.