Design elements incorporated into a presentation theme include colors, fonts, and effects

Instant messaging uses ____ technology, which lets one computing device identify the status of another.

A. asynchronous B. threaded C. routed D. presence

A(n) _______ is a collection of table definitions that give the name of the table, list of the attributes and their data types, and identifies the primary key.

Fill in the blank(s) with the appropriate word(s).