Refer to the exhibit. Which statement is true?

A.
A summary alert is sent once during each interval for each unique Summary Key entry.

B.
An alert is generated each time the signature triggers.

C.
This signature does not fire until three events are seen during 60 seconds with the same attacker and victim IP addresses and ports

D.
This signature is disabled by default.

E.
When this signature triggers, the Cisco IPS appliance sends an SNMP trap for this event.

Explanation:
NB: even if the box is not checked it is still in use – it is the default action/configuration – ticking it is allowing edit of that value