Which two types of firewalls work at Layer 4 and above? (Choose two.)
A. Application-level firewall
B. Circuit-level gateway
C. Static packet filter
D. Network Address Translation
E. Stateful inspection
Which two types of firewalls work at Layer 4 and above? (Choose two.)
A. Application-level firewall
B. Circuit-level gateway
C. Static packet filter
D. Network Address Translation
E. Stateful inspection
AB: you are right
The answer is A and B. Stateful FW operates at L4 and lower