I am preparing for OCA/OCP .... What should be the BEST answer for this question...
Question: In which situation would you use an AWR Active Session History Report?
a. If users are unable to create sessions.
b. If you want to view results of an ADDM Analysis
c. If users report that the system response time was slow during a specific time period and you suspect that performance configuration changes might be the cause
d. If users report the system response time was slow between 4.00 PM and 4.00 AM, but ADDM analysis for that time period shows no performance issues.