With the continuous development of network technology. The firewall is also completing its own upgrade. The technology evolution that firewalls have undergone includes which of the following options

With the continuous development of network technology. The firewall is also completing its own upgrade. The technology evolution that firewalls have undergone includes which of the following options
A . Stateful Detection Firewall
B . App Proxy Firewall
C . Packet filtering firewall
D . Web firewall

Answer: ABC