Illustrate a typical database system architecture

A consultant found that an area's economic base was heavily diversified with a mix of different types of industrial employment sources. The consultant learned this from _____

a. Survey of Buying Power b. Editor & Publisher Market Guide c. Census of Population d. Sales & Marketing Management

The Universal Product Code (UPC) system allows a retailer to _____

a. monitor sales in nonfood retail establishments b. store and monitor product sales data on an item-by-item basis c. develop a payroll system d. monitor accounts receivable