Unexpected Input
When you surf the Internet, you download one of two types of Web pages to your computer: static or dynamic. A static Web page sits on a Web server until a client computer sends a request for it. Once requested, the Web page is then downloaded to the client computer exactly as it was created, where the Web browser then views the page. A static Web page is really nothing more than a brochure or advertisement, and does not allow the true power of the Internet to be expressed. However, a static page is relatively safe from hackers.
In contrast, dynamic Web pages only exist in a partial state before they are requested. Using scripting languages, a Web server actually fills in all the missing parts and creates the Web page before ...
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