Refer to the exhibit. Which two statements are correct? (Choose two.)

A.
Cisco IOS IPS will fail-open.

B.
The basic signatures (previously known as 128MB.sdf) will be used if the built-in signatures fail to load.

C.
The built-in signatures will be used.

D.
SDEE alert messages will be enabled.

E.
syslog alert messages will be enabled.