You plan to duplicate the multitenant container database (CDB) cdb1 that contains the pluggable database (PDB) SALES:
Which two statements are true? enable_pluggable_database=TRUE in the initialization parameter file. When you duplicate one or more PDBs, RMAN also duplicates the root database, and the duplicated PDBs.
A.
The root and seed databases are included in the duplication.
B.
Only the SALES PDB is duplicated as the non-CDB CDBDUP.
C.
A backup of the SALES PDB must exist before the execution of the command.
D.
An auxiliary instance must have been started with the initialization parameter ENABLE_PLUGGABLE_DATABASE set to TRUE.
E.
RMAN must be connected to a recovery catalog for the execution of the command.
Explanation:
D: When duplicating a whole CDB or one more PDBs:
You must create the auxiliary instance as a CDB. To do so, start the instance with the following declaration in the initialization parameter file:
enable_pluggable_database=TRUE
A: To duplicate PDBs, you must create the auxiliary instance as a CDB. To do so, start the instance with the declaration
(CDB$ROOT) and the seed database (PDB$SEED). The resulting duplicate database is a fully functional CDB that contains the root, the seed
References: https://docs.oracle.com/database/121/BRADV/rcmdupdb.htm