Before installing RAM chips in a computer, you should touch any piece of metal on your computer to discharge any ________

When a field does not contain a value, either because that value is unknown or inapplicable, it is called a(n) ____ value.

A. void B. empty C. null D. redundant

Which of the following is a goal of dividing a Web site into a series of Web pages?

A) improve the ease of maintaining the Web site B) improve the collection of Web metrics C) improve tracking of page movement by the customer D) improve the revenue obtained by page marketing