Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)
A.Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces. B.The BACKUP DATABASE command will create a pluggable database (PDB.backup when RMAN is connected to a PDB. C.SPFILE backups can be created while connected to an application root PDB. D.The BACKUP DATABASE PLUS ARCHIVE LOG command will back up archive logs when RMAN is connected to a PDB. E.The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.正确答案AB
