Only one Web page can be open at any time.

Excel uses ________ to determine what categories are visible in a chart

Fill in the blank(s) with correct word

Passwords are secret codes that users enter to gain access to systems. Security can be compromised by all of the following except

A. failure to change passwords on a regular basis B. using obscure passwords unknown to others C. recording passwords in obvious places D. selecting passwords that can be easily detected by computer criminals