In RMAN, when the RESYNC CATALOG command is issued, in which two situations does the command file actually perform synchronization?()
A.
After the COPY command.
B.
After adding a data file in the target database.
C.
After adding a tablespace in the target database.
D.
After adding a tablespace in the catalog database.
E.
After dropping a data file in the catalog database.
F.
After running SQL Loader to load a large amount of data.