In which case do primary and backup databases have to be synchronized? Select TWO.

A.
after a TMF file recovery operation to a timestamp

B.
when asterisks (*****) appear in the final column of the STATUS RDF display

C.
after an SQLCI PURGEDATA operation

D.
when the MAXEXTENTS file attribute is greater on the backup system

E.
when the SLACK file attribute is different on the primary and the backup system