A ____ background image can be used to create a watermark effect, in which a subtle, often translucent graphic is displayed behind elements to mimic the watermarks found on some specialized stationery.

One job that a router performs is that of gatekeeper, which means that it can be configured to only allow certain packets access into the network based on a list of rules. What is that process called?

A. media control B. packet forwarding C. access control D. signal bounce

A ____ consists of interconnected computers, printers, and other computer equipment in close physical proximity.

A. WAN B. MAN C. SAN D. LAN