A.System statistics can be gathered only while connected to CDB$ROOT.

B.Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)

C.Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.

D.Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.

E.Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.

A.A backup of the target database is always required.

B.A connection to the target database instance is always required.

C.A subset of the target database can be duplicated.

D.Duplication can be done by having the target database instance push copies to the auxiliary database instance.

E.A connection to the recovery catalog instance is always required.

F.Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.

G.A new DBID is always created for the duplicated database.

H.A connection to an auxiliary instance is always required.

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

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

C.cdb$root and pdbSseed are automatically duplicated.

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

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

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 ENCRYPTIONcommand overrides encryption settings specified by the CONFIGURE ENCRYPTIONcommand.

E.Password encryption can be persistently configured using the CONFIGURE ENCRYPTIONcommand.

A.using Database Replay

B.using the create table AS select SQL statement

C.using SQL Developer

D.using operating system file copy utilities

E.using Oracle Data Pump

F.using Database Upgrade Assistant