Exam 7: Computer Networks, the Internet, and the Worldwide Web

When you dial a telephone number, the ____ between caller and callee lasts for the duration of the call, and when you hang up it is terminated.

A local Internet service provider (ISP) is called an Internet backbone.

A newsgroup is a specialized bulletin board that is associated with a special area of interest.

A URL is the worldwide identification of a Web page located on a specific host computer on the Internet.

Groupware is also known as electronic commerce.

It is the job of the network layer protocols to create a "program-to-program" delivery service, in which messages are moved from a specific program at the source to a specific program at the destination.

The Internet protocol stack has six total layers.

Asymmetric DSL lines usually provide ____ bandwidth coming into the computer than going out.

In the TCP/IP protocol hierarchy, the ____ layer protocols are the rules governing the exchange of binary digits across a physical communication channel.

A(n) ____ is a device that amplifies and forwards a signal.

The logical link control protocols determine how to arbitrate ownership of a shared line when multiple nodes want to send at the same time.

The ARQ (automatic repeat request) algorithm is the basis for all data link control protocols in current use.

The ____ is a nonprofit organization that enforces network protocol standards.

A mutually agreed upon set of rules, conventions, and agreements for the efficient and orderly exchange of information is called a protocol.

A single ISP would very likely be able to connect a single campus to every other computer in the world.

Resource sharing refers to the ability to share logical resources, such as software and information, but not physical sources, such as printers.

A digital subscriber line signal uses a different set of frequencies, and transmits analog rather than digital signals.

High-speed communications are necessary to support video on demand.

Most wide area networks use a store-and-forward, ____ technology to deliver messages.

The ____ layer protocols are the rules for implementing the end-user services provided by a network.