1. What is the typical relationship among the
un-trusted network, the firewall, and the
What is a circuit gateway, and how does it differ from the other forms of
3. What is a hybrid
4. List the five generations of firewall technology.
Which generations are still in common
5. What is a
VPN? Why is it becoming more widely used?
6. What is
RADIUS? What advantage does it have over TACACS?
7. Describe how the various types of firewalls
interact with the network traffic at various
levels of the