A(n) ____ backup creates an image of all of the files on a disk volume in binary format.

In a query, the phrase ________ tests whether the field contains a value, returning the records if there is no value

A) Is Empty B) Is Not Empty C) Is Null D) Is Not Null

Which statement about trees is false?

a. A tree is a nonlinear, two-dimensional data structure. b. Each node in a tree contains two links. c. The children of a node are called siblings. d. A node with no children is called a leaf node.