Under UNIX, the execution of an image is called a(n) __________.

Answer the following statements true (T) or false (F)

1. The firewall may be a single computer system or a set of two or more systems that cooperate to perform the firewall function. 2. A firewall can serve as the platform for IPSec. 3. The firewall can protect against attacks that bypass the firewall. 4. A packet filtering firewall is typically configured to filter packets going in both directions. 5. One disadvantage of a packet filtering firewall is its simplicity.

Any statements you place within the ____ control will be performed in the order they appear, top to bottom.

A. for all  B. do next C. while in order D. do in order