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