When businesses store data items on computer systems, they are often stored in a framework called the data ____________________ that describes the relationships between data components.

?Identify the letters of the choices that best match the phrases or definitions.

A. ?Supersedes a browser's default styles and provides a consistent starting point for page design B. ?Uses percentage as the unit of measure C. ?Defines a rectangular region through which an element's content can be viewed D. ?The default positioning style E. ?A positioning that enables one to place an element at specific coordinates within a container F. ?A positioning used to nudge an element out of its normal position in a document flow G. ?Uses pixels as the unit of measure H. ?Assigns an element the display property of its parent element I. ?Prevents an element from displaying, removing it from the page structure J. ?Displays an element as a block unless its next sibling is also a block K. ?Expresses measurements in em units L. ?Specifies a stacking order

Nick is working on a computer at a customer’s house. The customer is concerned that her computer has a problem because recently the Internet home page changed, and when she tried to search the Internet, a strange search engine appeared. ? What has happened to the customer’s computer?

A. The computer is infected with a network worm. B. The computer is infected with a redirect virus. C. A new web browser was installed. D. A new browser add-on was installed.