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CIW Lesson 3 Vocab

CIW Lesson 3 Vocab for uCertify

TermDefinition
4G (fourth generation) Wireless phone network capable of delivering high-speed broadband Internet access to mobile devices.
4G mobile hotspot A device that connects a wireless local area network to a wireless phone network at broadband speeds.
Advanced Research Projects Agency (ARPA) A U.S. Department of Defense agency that created the first global computer network.
Advanced Research Projects Agency Network (ARPANET) A computer network, funded by ARPA, that served as basis for early networking research and was backbone during development of the Internet.
backbone The highest level in the computer network hierarchy, to which smaller networks typically connect.
bandwidth The amount of information (aka traffic) that can be carried on a network at one time. The total capacity of a line. Also, rate of data transfer over network connection; measured in bits per second.
client An individual computer connected to a network. a system or app(such as a Web browser or user agent) that requests a service from another computer (the server) , used to access files or documents.
digital subscriber line (DSL) A high-speed direct Internet connection that uses all-digital networks.
domain name An IP address represented in words.
domain name server A server that resolves domain names into IP addresses.
Domain Name System (DNS) A system that maps uniquely hierarchical names to specific Internet addresses.
File Transfer Protocol (FTP) An Internet protocol used to transfer files between computers; allows file transfer without corruption or alteration.
fully qualified domain name (FQDN) The complete domain name of an Internet computer, such as www.CIWcertified.com.
gateway A node on a network that serves as a portal to other networks.
hexadecimal A base-16 # system allows large #s to be displayed by fewer characters than if the # were displayed in the regular base-10 system. In hexadecimal, # 10 is represented as the letter A, 15 is represented as F, and 16 is represented as 10.
host A computer that other computers can use to gain information. In network architecture, a host is a client or workstation.
hypertext link Highlighted or underlined text in a Web page that, when clicked, links the user to another location or Web page.
Hypertext Transfer Protocol (HTTP) The protocol for transporting HTML documents across the Internet.
Integrated Services Digital Network (ISDN) A communication standard for sending voice, video or data over digital telephone lines.
Internet A worldwide network of interconnected networks.
Internet Assigned Numbers Authority (IANA) The international organization responsible for allocation of IP addresses. Part of the Internet Corporation for Assigned Names and Numbers (ICANN).
Internet Message Access Protocol (IMAP) A protocol that resides on an incoming mail server. Similar to POP, but is more powerful. Allows sharing of mailboxes and multiple mail server access. The current version is IMAP4.
Internet Protocol (IP) The data transmission standard for the Internet. Every computer connected to the Internet has its own IP address, which enables a packet of data to be delivered to a specific computer.
Internet Service Provider (ISP) An organization that maintains a gateway to the Internet and rents access to customers on a per-use or subscription basis.
local area network (LAN) A group of computers connected within a confined geographic area.
modem Abbreviation for modulator/ demodulator. analog device that enables computers to communicate over telephone lines by translating digital data into audio/ analog signals (on sending computer) and then back into digital form (on the receiving computer).
National Science Foundation (NSF) An independent agency of the U.S. government that promotes the advancement of science and engineering.
network A group of two or more computers connected so they can communicate with one another.
network interface card (NIC) A circuit board within a computer's central processing unit that serves as the interface enabling the computer to connect to a network.
Network News Transfer Protocol (NNTP) The Internet protocol used by news servers that enables the exchange of newsgroup (Usenet) articles.
newsgroup On Usenet, a subject or other topical interest group whose members exchange ideas and opinions. Participants post and receive messages via a news server.
node Any entity on a network that can be managed, such as a system, repeater, router, gateway, switch or firewall. A computer or other addressable device attached to a network; a host.
packet Data processed by protocols so it can be sent across a network.
Point-to-Point Protocol (PPP) A protocol that allows a computer to connect to the Internet over a phone line.
Point-to-Point Protocol over Ethernet (PPPoE) A protocol that implements PPP on top of the Ethernet architecture to connect an entire network to the Internet.
root-level server A server at the highest level of the Domain Name System.
router A device that routes packets between networks based on network-layer addresses; determines the best path across a network. Also used to connect separate LANs to form a WAN.
server A computer in a network that manages the network resources and provides, or serves, information to clients.
shared domain A hosting service that allows multiple entities to share portions of the same domain name.
Simple Mail Transfer Protocol (SMTP) The Internet standard protocol for transferring e-mail messages from one computer to another.
standard A definition or format that has been approved by a recognized standards organization.
top-level domain The group into which a domain is categorized, by common topic (company, educational institution) and/or geography (country, state).
Transmission Control Protocol/Internet Protocol (ICP/IP) A suite of protocols that turns data into blocks of information called packets, which are then sent across the Internet. The standard protocol used by the Internet.
Usenet (User Network A collection of thousands of Internet computers, newsgroups and newsgroup members using Network News Transfer Protocol (NNTP) to exchange information.
Virtual Domain A hosting service that allows a company to host its domain name on a third-party ISP server.
Web browser A software application that enables users to access and view Web pages on the Internet.
Web page An HTML document containing one or more elements (text, images, hyperlinks) that can be linked to or from other HTML pages.
Web site A World Wide Web server and its content; includes multiple Web pages.
wide area network (WAN) A group of computers connected over an expansive geographic area so their users can share files and services.
wireless access point (AP) A device that enables wireless systems to communicate with each other, provided that they are on the same network.
World Wide Web (WWW) A set of software programs that enables users to access resources on the Internet via hypertext documents.
xDSL Collectively, the variations of Digital Subscriber Line (DSL), which include ADSL, RADSL and HDSL.
Created by: cc1685