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24 Cards in this Set
- Front
- Back
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Biometric security measures
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refers to techniques for ensuring that data stored in a computer cannot be read or compromised by any individuals without authorization
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Cable modem
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A type of modem that allows people to access the Internet via their cable television service
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Client
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a workstation on a network that gains access to central data files, programs, and peripheral devices through a server
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Client/server network
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A computer network in which one centralized, powerful computer (called the server) is a hub to which many less powerful personal computers or workstations (called clients) are connected
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communication channels
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the message or content, and the channel it's transmitted on
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digital subscriber line
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A family of digital telecommunications protocols designed to allow high speed data communication over the existing copper telephone lines between end-users and telephone companies
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Extranet
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an intranet that is partially accessible to authorized persons outside of a company or organization
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Firewall
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an integrated collection of security measures designed to prevent unauthorized electronic access to a networked computer system
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Hacker
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a microcomputer user who attempts to gain unauthorized access to proprietary computer systems.
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Hub
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A common connection point for devices in a network. Hubs are commonly used to connect segments of a LAN
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Internet
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A global network connecting millions of computers. More than 100 countries are linked into exchanges of data, news and opinions
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Intranet
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A network based on TCP/IP protocols (an internet) belonging to an organization, usually a corporation, accessible only by the organization's members, employees, or others with authorization
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Local area network (LAN)
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A computer network that spans a relatively small area. Most LANs are confined to a single building or group of buildings. However, one LAN can be connected to other LANs over any distance via telephone lines and radio waves
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Modem
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Short for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines
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Node
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In networks, a processing location. A node can be a computer or some other device, such as a printer
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Peer-to-peer network
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a type of network in which each workstation has equivalent capabilities and responsibilities
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Proxy server
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A server that sits between a client application, such as a Web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself. If not, it forwards the request to the real server
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Public Switched Telephone Network (PSTN)
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which refers to the international telephone system based on copper wires carrying analog voice data. This is in contrast to newer telephone networks base on digital technologies, such as ISDN and FDDI
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Router Server
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A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network. Routers are located at gateways, the places where two or more networks connect
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Server Operating system T-1 line
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A computer or device on a network that manages network resources. For example, a file server is a computer and storage device dedicated to storing files
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Wide area network (WAN)
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A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs)
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WiMAX
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specification for fixed broadband wireless metropolitan access networks (MANs) that use a point-to-multipoint architecture
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WISP
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Short for wireless ISP, an Internet Service Provider (ISP) that offers services Internet connection services to subscribers using a wireless connection
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Wireless LAN (WLAN)
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having no wires; wireless local area network
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