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  • Validate
    To ensure that a ticket is legitimate. Validation ensures that the ticket was generated by the correct ticketing agent by testing the message authentication code (MAC) and that the IP address in the ticket is the same as the host IP address of the machine issuing the request. Contrast with authentication and authorization.
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  • Veronica
    Software that searches for filenames on Gopher servers.
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  • VGA
    Virtual Graphics Array. This standard video graphics adapter was created by IBM and has been since improved in Super VGA, which generally supports "true color" or 16.8 million colors.
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  • Viewer
    A viewer assists your Web browser by handling files that the browser itself can't. Viewers can be any type of application, since they may be called upon to handle any kind of file. Sometimes called helpers.
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  • Virtual Hosting
    A way of hosting multiple Web sites, for a single, or multiple, customers, on a single piece of server hardware. Generally, shared hosting is implemented using virtual hosting techniques.
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  • Virtual Private Network
    A logical (that is, artificial or simulated), retricted-use network that is constructed from the resources of a relatively-public physical (that is, real) network, often by tunneling links of the virtual network across the real network and often by using encryption located at hosts or gateways to protect the tunnels. A VPN can be built on the Internet, creating a cost-effective backbone that fully connects several sites and eliminates the need for expensive leased lines between the sites.
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  • Visit
    A sequence of hits received close together in time by a single Web server from a single Web client.
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  • Voice Identification
    Voice Verification. The use of voice recognition technology to identify a person by his or her voice.
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  • Voice Input
    The use of the human voice to enter data or commands into a computer.
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  • VoIP
    Voice over Internet protocol; the practice of using an Internet connection instead of the standard public switched telephone network to send voice data.
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