Which are three of the steps taken by Database Configuration Assistant (DBCA.to clone a remote pluggable database (PDB.starting from Oracle 19c?
A.creating a database link from CDB$ROOT in the local database to CDB$ROOT in the remote system that is to be cloned B.backing up the cloned PDB C.creating a database link from CDB$ROOT in the local database to the PDB in the remote system that is to be cloned D.leaving the cloned PDB in mount state E.opening the cloned PDB正确答案BCE
