Which two statements are true regarding Health Monitor checks in Oracle Database 11g? (Choose two.)
A.
Health Monitor checks can be used to scan the contents of the redo log and archive logs for accessibility
and corruption.
B.
Health Monitor checks can be used to verify the integrity of database files and report failures if these files
are inaccessible, corrupt or inconsistent.
C.
Health Monitor checks can be used to verify the contents of dictionary entries for each dictionary object and
fix it automatically.
D.
Health Monitor checks are always initiated manually when there is some critical error.