ISACA Exam Questions

What type(s) of firewalls provide(s) the greatest degree of protection and control because both fire

.What type(s) of firewalls provide(s) the greatest degree of protection and control because both
firewall technologies inspect all seven OSI layers of network traffic?

A.
A first-generation packet-filtering firewall

B.
A circuit-level gateway

C.
An application-layer gateway, or proxy firewall, andstateful-inspection firewalls

D.
An application-layer gateway, or proxy firewall, but notstateful-inspection firewalls

Explanation:
An application-layer gateway, or proxy firewall, and stateful -inspection firewalls provide the
greatest degree of protection and control because both firewall technologies inspect all seven OSI
layers of network traffic.