1. Identify the three different kinds of access control, which one most resembles a Windows OS environment, military?

2. What are the three authentication factors? Provide an example for each one.
3. How are firewalls categorized?

4. What kind of characteristics or information do packet-filtering firewalls use to filter packets?
5. If I open ports 20, 21, and 23, 443, and 25 – what services/protocols have I turned on and what type of firewall would allow traffic through based on this information?

6. Describe a proxy server.
7. What type of firewall is restricted to only one or a couple of protocols, therefore, they cannot easily be reconfigured to protect against attacks on other protocols?

8. What is a Virtual private network and how does it work (I want details)?
9. If I filter traffic in my local area networked based on hardware or physical addresses only, what type of firewall am I using?

10. What is the difference between a sacrificial host and a bastion host?