Firewall Basics and Firewall Placement
This video goes into detail about more types of firewalls, as well as firewall settings and techniques. You should be able to describe each type of firewall, and know what circumstances each type should be used for. What is the difference between stateless and stateful inspection firewalls? What is a virtual firewall? When discussing firewall settings and techniques, it is important that you can explain what an access control list (ACL) is. What should the last rule in an ACL be? Where should a stateful or a stateless firewall be placed? What is a demilitarized zone (DMZ), and where should a DMZ be placed?