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40 Cards in this Set
- Front
- Back
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biometric security measures
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examine a fingerprint, a voice, pattern, or the iris or retina of an eye
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cable modem
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a device that uses coaxial cable to semd and recieve data
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client
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a computer that uses the services of another program
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client/server network
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computer configuration in which one or more computers on the network acts as a server
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communication channels
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link from one computer to another through which data can be transmitted
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digital subscriber line (DSL)
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an internet connection technology that provides for the transfer of information to a computer at a high-speed bandwidth over ordinary copper telephone lines
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extranet
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a network configuration that allows selected outside organizations to access internal information systems
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firewall
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a combination of h-ware and s-ware that creates a buffer b/w an internal network and the internet to prevent unauthorized access
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hacker
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expert computer user who invades another's computer either for personal gain or simply for the satisification of being able to do it
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hub
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a junction where info arrives from connected computers or periphial devices and is then forwarded in one or more directions to other computers and devices
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Internet
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The largest network used as a communication tool
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Intranet
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a network designed for the exclusive use of computer users within an organization that cannot be accessed by users outside the organization
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local area network (LAN)
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a series of connected personal computers, workstations, and other devices, like printers or scanners, within a confined space, such as an office building
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Modem
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communication h-ware device that facilitates the transmission of data
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node
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a device on the network
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peer-to-peer network
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computer archictecture in which all of the computers on a network are equal and there is no computer designated as the server
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proxy server
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a server that acts as an intermediary b/w a user and the internet
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Public Switched Telephone Network (PSTN)
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the worlds collection of interconnected commercial and government-owned voice-oriented systems
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router
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a device that directs traffic on network by dividing data into smaller packets that travel by different routes and then are reassembled at their destination
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server
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a computer that handles requests for data, email, file transfers, and other network services from other computers
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server operating system
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high-end programs designed to provide network control and include special functions for connecting computers and other devices into a network
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T-1 line
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a typ[e of fiber-optic telephone line that can transmit up to 1.554 megabits per second or can be used to transmit 24 digiitalized voice channels
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wide area network (WAN)
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computer network that covers a large geographical area. most are made up of several connected LANS
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wireless Internet service provider
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an ISP that provides conncection speeds more than 30 times faster than dial-up connections
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WISP
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.an ISP that provides conncection speeds more than 30 times faster than dial-up connections
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wireless LAN (WLAN)
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a variation of a LAN that uses no physical wires
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Address Book
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part of most e-mail programs;used to keep a list of contacts and their email addresses
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archiving
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process of backing up up email messages
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attachment
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a document, image, figure, or other file that you can attach to an email message
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distribution list
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list of email addresses you can use to send same message to a group
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electronic mail (e-mail)
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transmission of electronic messages over networks
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e-mail address
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the address of the email
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instant messaging
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form of electronic communication that allows ou to send and recieve text messages in real time from friends who are online
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mailing list
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list of email addresses you can use to send same message to a group
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packets
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broken down small chuncks
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signature
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text or graphics added to end of outgoing email meddages
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spam
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unsolicited emial junk mail
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text messaging
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using cell phone or other mobile devices to send and recieve written messages
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user agent
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software application installed on local PC,network, or Web, like email, text, and instant messaging programs
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Windows Mail
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email software provided with windows Vista
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