Using the ____ on the Color panel, you can edit the foreground and background colors using different color modes.

The bitwise AND operator & is often used to ________ bits (i.e., to select certain bits from a bit string while zeroing others).

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

Firewalls are

A. special materials used to insulate computer facilities B. a system that enforces access control between two networks C. special software used to screen Internet access D. none of the above