Which two statements about application security attacks are true? (Choose two.)
A.
Firewalls don’t fully protect against application-layer attacks. True security is L2-L7.
B.
QoS can mitigate most application security attacks.
C.
An IPS will protect against all application level attacks aimed at advanced applications.
D.
Customized code and custom applications deployed over the WAN to partners and customers are particularly vulnerable.