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

Modified Multiple Choice Virtual reality is used for which of the following practical applications?

There is no difference between a newsgroup and a mailing list.

____ is a technique, as shown in the accompanying figure, in which messages are broken into individual pieces.

As shown in the accompanying figure, the ____________________ is the world's largest network, a worldwide collection of networks that link together millions of businesses, governments, educational institutions, and individuals using modems, telephone lines, and other communications devices and media.

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

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

Netiquette recommends that Internet users avoid sending or posting flames, which are ____.

The terms World Wide Web and Internet are interchangeable.

Each Web page on a Web site has a unique address, called a(n) ____________________.

____________________ enables users to speak to other users over the Internet using their desktop computer, mobile computer, or mobile device.

Internet ____ allows parents, teachers, and others to block access to certain materials on the Internet.

A(n) ____ records the pages viewed while you are online.

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

Critical Thinking Questions Case 2-1 You are working on lesson plans for your class and are trying to determine the best category of Web site to have your students use. Which of the following Web site categories would you recommend for your students who are doing research papers on one of the 50 states?

____ was/were one of the original features of the Internet, enabling scientists and researchers working on government-sponsored projects to communicate with colleagues at other locations.

____ enables you to listen to the sound file as it downloads to your computer.

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.

A(n) ____________________ manages the resources on a network and provides a centralized storage area for software programs and data.

:) (Smile), :( (Frown), :| (Indifference), :\ (Undecided), :-D (Laughing), and :o (Surprise) are popular ____ used to express feeling in an e-mail message.

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