Which two statements are true about ADDM? (Choose two.)
A. It analyzes the performance of a database instance based on the time period covered by the most recent AWR snapshot, and generates recommendations based on hard-coded criteria.
B. It can analyze performance issues that occurred in past events provided they fall within the AWR retention period.
C. ADDM resource utilization and cost of analysis depends on the actual load on the database and the number of performance problems analyzed.
D. It first identifies the performance symptoms, and then refines them to reach the root cause with the singular aim of reducing the DB CPU metric.
E. It documents only those components and wait classes that are significantly impacting the performance of the database.
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