OCP CBT 기출문제 예상문제 488번

다음 문제를 풀어보세요.

You have an existing PDB named `SALES_PDB` in `CDB01`. You need to move `SALES_PDB` to a different CDB, `CDB02`. Which two actions are required before `SALES_PDB` can be plugged into `CDB02`?

SALES_PDB is currently open in CDB01. Both CDB01 and CDB02 are running Oracle Database 19c.

ALTER PLUGGABLE DATABASE SALES_PDB CLOSE; followed by ALTER PLUGGABLE DATABASE SALES_PDB UNPLUG INTO '/u01/app/oracle/sales_pdb.xml';

ALTER PLUGGABLE DATABASE SALES_PDB OPEN READ ONLY; followed by ALTER PLUGGABLE DATABASE SALES_PDB UNPLUG INTO '/u01/app/oracle/sales_pdb.xml';

ALTER PLUGGABLE DATABASE SALES_PDB CLOSE; followed by DROP PLUGGABLE DATABASE SALES_PDB INCLUDING DATAFILES;

SHUTDOWN IMMEDIATE; followed by ALTER DATABASE UNPLUG INTO '/u01/app/oracle/sales_pdb.xml';