Which of the following statements about the Port Scanning feature of IPS is TRUE?

A.
The default scan detection is when more than 500 open inactive ports are open for a period of
120 seconds.

B.
The Port Scanning feature actively blocks the scanning, and sends an alert to Smart View Monitor.

C.
Port Scanning does not block scanning; it detects port scans with one of three levels of detection
sensitivity.

D.
When a port scan is detected, only a log is issued, never an alert.