Correct Response: D. Streaming video is sent from the host to a Web browser continuously as the video is being played. This allows the viewer to watch a long video immediately without having to wait until the entire file is downloaded. A is incorrect because while packets of streaming video are stored in a buffer before being viewed, the buffer typically uses system RAM instead of a hard drive because of its greater speed. B is incorrect because both streaming video and traditional video are typically compressed for this reason. C is incorrect because both can be used with an unlimited number of Web browsers.