A crosstab query is different than the aggregate functions that you have been completing thus far because it groups the aggregates by the ________ headings

If a single physical disk is divided into three partitions, how many different file systems can be supported?

A. 0 B. 1 C. 2 D. 3

Entering a company's restricted area by following closely behind an authorized person is referred to as which of the following?

a. Shoulder surfing b. Piggybacking c. False entering d. Social engineering