Which method or feature should you use?

You notice performance degradation in your production Oracle 12c database. You want to know what caused this performance difference.Which method or feature should you use?References: http://docs.oracle.com/cd/E24628_01/server.121/e17635/tdppt_degrade.htm

Question:

Which method or feature should you use?

Options:

Database Replay

Automatic Database Diagnostic Monitor (ADDM) Compare Period report

Active Session History (ASH) report

SQL Performance Analyzer

Correct Answer

The Correct Answer for this Question is

Automatic Database Diagnostic Monitor (ADDM) Compare Period report

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