Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The
default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is
open and you connect RMAN. You want to issue the following RMAN command: RMAN >
BACKUP TABLESPACE hr_pdb:userdata; Which task should you perform before issuing
the command?
A.
Ensure that HR_PDB is open.
B.
Place the root container in the nomount stage.
C.
Take the user data tablespace offline.
D.
Place the root container in ARHCHIVELOG mode.