You are managing an online transaction processing (OLTP) system. The database is supporting a large number of applications using connection pools to connect to the database.
Which method would you use for performance management?
A.
Service aggregation for action within application module
B.
Monitoring individual sessions by querying V$SESSION_LONGOPS
C.
Monitoring individual sessions in an application by querying V$SESSION
D.
Mapping the sessions for an application to one resource consumer group