Which of the following processes does an IDS perform?

An IDS is a group of processes working together in a network. These processes work on different computers and devices across the network.

Which of the following processes does an IDS perform? Each correct answer represents a complete solution. (Choose all that apply.)
A . Statistical analysis of abnormal traffic patterns.
B . Monitoring and analysis of user and system activity.
C . Network traffic analysis.
D . Event log analysis.

Answer: A,B,C,D