Choose three.
Which three are true about a container database (CDB)?
A.It can be created from a non-CDB. B.It can contain only one PDB$SEED which is created when the CDB is created. C.It can have local users with the same name in different PDBs. D.It can contain only one Application Container seed which is created when the Application Container is created. E.It can be created by cloning an existing CDB. F.It can have any number of pluggable databases (PDBs) limited only by space availability. G.It contains predefined common roles in both the root and the seed.正确答案BCE
