1. Our lecture states that relevant costs can also be viewed as avoidable costs. What does this mean? This is a very difficult concept, so help your classmates understand it!

2. What is incremental analysis? How is it used by management?

3. High Blood pressure is known as the silent killer, why is this an appropriate name? In your answer, explain how blood pressure is measured and what readings indicate that your pressure is high. How can this condition be improved or prevented?

4. The Human Immunodeficiency Virus (HIV) infects helper T cells. What is the role of these cells in the immune system (be as complete as possible)? How does the loss of these cells lead to the profound immunodeficiency seen in people who develop AIDS (Acquired Immune Defiiciency Syndrome) as a result of being infected with this virus.

5. For an environment that is familiar to you (such as work or school), describe the different nonemployees who may have access to facilities that could contain sensitive information.

6. Securing applications has become a hot topic these days. Hackers exploit applications by finding weak passwords; finding buffer, heap, and stack overruns; by network sniffing; and through SQL injection, to name a few techniques.Name some ways to secure a network against attack.