Which three tasks are performed in the system monitoring service component of the operate phase? (Choose three.)

A.
monitor system to identify occurrences of service-level metrics dropping

B.
define an operations plan supporting the configuration management database

C.
notify interested parties of problems identified, and escalate per-customer requirements

D.
verify configuration management database

E.
analyze process exceptions

F.
track events and report on system availability, resource capacity, and performance