A primary key is used to _____.

a) create rows in a database
b) identify fields in a database
c) distinguish between rows in a table
d) read information from a database


Answer: C

Computer Science & Information Technology

You might also like to view...

The 64-bit version of Windows XP runs on the Intel Itanium chip and supports up to __________ GB of physical memory and up to __________ TB (terabytes) of virtual memory.

a. 16/16 b. 8/8 c. 4/4 d. 32/32

Computer Science & Information Technology

________ occurs when an infinite loop prevents progress in a multithreaded application.

a) Lockstep synchronization b) Deadlock c) Busy waiting d) Indefinite postponement

Computer Science & Information Technology

A presentation's ________ determine the fonts applied to two types of slide text: headings and body

A) theme fonts B) table style C) legend D) theme colors

Computer Science & Information Technology

Identify the letter of the choice that best matches the phrase or definition.

A. Collection of one or more attributes that are applied to the visual components of a Web page B. Collection of one or more cascading style codes that has been extracted from the header of a Web page and stored in a separate file in a specific (CSS) format C. Collection of one or more attributes that can be specified once within the header of a Web page and then applied to many instances of a particular tag D. Support a variety of attributes that are used to define column widths, border thickness and style, and cell padding, as well as other features E. Named group of attributes that are defined in a Cascading Style Sheet and that can be applied to specified tags within an HTML document

Computer Science & Information Technology