Lesson 3 Vocabulary

A device that connects a wireless local area network to a wireless phone network at broadband speeds.

A U.S. Department of Defense agency that created the first global computer network.

A computer network, funded by ARPA, that served as the basis for early networking research and was the backbone during the development of th

The highest level in the computer network hierarchy, to which smaller networks typically connect.

The amount of information, sometimes called traffic, that can be carried on a network at one time. The total capacity of a line. Also, the r

A high-speed direct Internet connection that uses all-digital networks.

An IP address represented in words.

A server that resolves domain names into IP addresses.

A system that maps uniquely hierarchical names to specific Internet addresses.

An Internet protocol used to transfer files between computers; allows file transfer without corruption or alteration.

The complete domain name of an Internet computer, such as www.CIW-certified.com.

A node on a network that serves as a portal to other networks.

A base-16 number system that allows large numbers to be displayed by fewer characters than if the number were displayed in the regular base-

A computer that other computers can use to gain information. In network architecture, a host is a client or workstation.

Highlighted or underlined text in a Web page that, when clicked, links the user to another location or Web page.

The protocol for transporting HTML documents across the Internet.

A communication standard for sending voice, video or data over digital telephone lines.

A worldwide network of interconnected networks.

The international organization responsible for allocation of IP addresses. Part of the Internet Corporation for Assigned Names and Numbers.

A protocol that resides on an incoming mail server. Similar to POP, but is more powerful. Allows sharing of mailboxes and multiple mail serv

The data transmission standard for the Internet. Every computer connected to the Internet has its own IP address, which enables a packet of

An organization that maintains a gateway to the Internet and rents access to customer on a per-use or subscription basis.

A group of computers connected within a confined geographic area.

Abbreviation for modulator/demodulator. An analog device that enables computers to communicate over telephone lines by translating digital d

An independent agency of the U.S. government that promotes the advancement of science and engineering.

A group of two or more connected so they can communicate with one another.

A circuit board within a computer's central processing unit that serves as the interface enabling the computer to connect to a network.

The Internet protocol used by news servers that enables the exchange of newsgroups (Usenet) articles.

On Usenet, a subject or other topical interest group whose members exchange ideas and opinions. Participants post and receive messages via a

Any entity on a network that can be managed, such as a system, repeater, router, gateway, switch, or firewall. A computer or other addressab

Data processed by protocols so it can be sent across a network.

A protocol that allows a computer to connect to the Internet over a phone line.

A protocol that implements PPP on to of the Ethernet architecture to connect an entire network to the Internet.

A protocol that resides on an incoming mail server. The current version is POP3.

A server at the highest level of the Domain Name System.

A device that routes packets between networks based on network-layer addresses; determines the best path across a network. Also used to conn

A computer in a network that manages the network resources and provides, or servers, information to clients.

A hosting service that allows multiple entities to share portions of the same domain name.

The Internet standard protocol for transferring e-mail messages from one computer to another.

A definition or format that has been approved by a recognized standards organizations.

The group into which a domain is categorized, by common topic (company, educational institution) and/or geography (country, state).

A suite of protocols that turns data into blocks of information called packets, which are then sent across the Internet. The Standard protoc

A collection of thousands of Internet computers, newsgroups and newsgroup members using Network News Transfer Protocol (NNTP) to exchange in

A hosting service that allows a company to host its domain name on a third-party ISP server.

A software application that enables users to access and view Web pages on the Internet.

An HTML document containing one or more elements (text, images, hyperlinks) that can be linked to or from other HTML pages.

A World Wide Web server and its content; includes multiple Web pages.

A group of computers connected over an expensive geographic area so their users can share files and services.

A device that enables wireless systems to communicate with each other, provided that they are on the same network.

A set of software programs that enables users to access resources on the Internet via hypertext documents.

Collectively, the variations of Digital Subscriber Line (DSL), which include ADSL, RADSL and HDSL.