Which three are true about Automatic Workload Repository (AWR),
Automatic Database Diagnostic Monitor (ADDM), and the Manageability
Monitor (MMON) background process? (Choose three.)
A.ADDM can recommend shrinking the buffer cache. B.ADDM can recommend extending the buffer cache. C.By default, MMON creates an AWR snapshot every 30 minutes. D.ADDM performs its analysis only when a DBA requests it. E.By default, AWR snapshots are automatically purged after eight days. F.AWR snapshots must be deleted when no longer required by ADDM.正确答案ABE
