Exam 2: Communications, Networks, the Internet, and the World Wide Web

A basic communications system consists of ____.

The terms World Wide Web and Internet are interchangeable.

Most universities, corporations, ISPs, online services, and other large organizations have a news server.

____ is/are the appearance of motion created by displaying a series of still images in rapid sequence.

A newsreader enables a user to access a newsgroup to read a previously entered message, called a(n) ____.

A(n) ____________________ is a general term that refers to both hardware and software used to restrict access to data on a network.

Branching off and investigating related topics as you encounter them is a nonlinear way of learning, also known as Web surfing.

____________________ is the simulation of a real or imagined environment that appears as a three-dimensional (3-D) space.

Summarize the steps in the process illustrated by the accompanying figure to describe how data travels over the Internet.

For telephone lines to carry data, a communications device called a(n) ____ like the one in the accompanying figure is used to convert digital signals to analog signals.

A(n) ____ covers a limited geographical region such as a school.

Networks and media that use broadband technologies transmit signals at much slower speeds than traditional network configurations.

Using the following URL, describe each of the four listed components       http://www.us-parks.com/grand_canyon/scenic_vistas.html

If, in the process illustrated in the accompanying figure, data packets arrive out of sequence, the destination computer is unable to reassemble the original message.

To network computers and devices that span multiple rooms or floors in a home, as shown in the accompanying figure, it may be more convenient to use a ____ network.

Internet2 (I2) is an extremely high-speed network that develops and tests advanced Internet technologies for research, teaching, and learning.

Data sent over the Internet travels over networks and communications lines owned and operated by a single company.

A(n) ____ is a real-time communication.

An Acceptable Use Policy (AUP) is an outline of user standards that reminds teachers, students, and parents that they are guests on the Internet.