Computer criminals use denial-of-service attacks on information systems to __________.

Connecting two wide area networks requires devices such as high-speed ____.

Data are sent through a network in bundles called ________.

Data is broken into _____ to be transmitted over the internet.

Data is physically transmitted from one computer or terminal to another in the ________ layer.

Each computer or device on a network is called a(n) ______.

____ are wide area networks that are logically defined over public transmission systems.

____ are often considered first-level support.

____ are encrypted messages that can be mathematically proven to be authentic.

____ and distributed routing are methods for controlling routing information.

Which is an example of wireless encryption?