Lols

What is the typical relationship among the untrusted network, the firewall, and the

trusted network?

2. What is the relationship between a TCP and UDP packet? Will any specific transaction

usually involve both types of packets?

3. How is an application layer firewall different from a packet-filtering firewall? Why is

an application layer firewall sometimes called a proxy server?

4. How is static filtering different from dynamic filtering of packets? Which is perceived

to offer improved security?

5. What is stateful inspection? How is state information maintained during a network

connection or transaction?

6. What is a circuit gateway, and how does it differ from the other forms of firewalls?

7. What special function does a cache server perform? Why is this useful for larger

organizations?

8. Describe how the various types of firewalls interact with the network traffic at various

levels of the OSI model.

9. What is a hybrid firewall?

10. List the five generations of firewall technology. Which generations are still in common

use?

11. How does a commercial-grade firewall appliance differ from a commercial-grade firewall

system? Why is this difference significant?

12. Explain the basic technology that makes residential/SOHO firewall appliances effective

in protecting a local network. Why is this usually adequate for protection?

13. What key features point up the superiority of residential/SOHO firewall appliances

over personal computer-based firewall software?

14. How do screened host architectures for firewalls differ from screened subnet firewall

architectures? Which of these offers more security for the information assets that

remain on the trusted network?

15. What a sacrificial host? What is a bastion host?

16. What is a DMZ? Is this really an appropriate name for the technology, considering the

function this type of subnet performs?

17. What are the three questions that must be addressed when selecting a firewall for a

specific...