a. What distinguishes an application proxy firewall from static packet filtering firewalls and SPI firewalls? b. Distinguish between proxy programs and application proxy firewalls. c. If you will...

a. What distinguishes an application proxy firewall from static packet filtering firewalls and SPI firewalls? b. Distinguish between proxy programs and application proxy firewalls. c. If you will proxy four different applications, how many proxy programs will you need? d. How many application proxy firewalls will you need at a minimum? e. Can nearly all applications be proxied? f. Why is application proxy firewall operation processing-intensive? g. Why do firms not use application proxy firewalls as main border firewalls? h. What are the two main roles of application proxy server firewalls today?