Which statement describes streaming of moving image files?

Which statement describes streaming of moving image files?

• A. The file is processed and viewed before it is completely downloaded
• B. The video is downloaded in the background and plays before the whole file is downloaded
• C. The video can only be viewed after the full file is downloaded
• D. Streaming requires no buffering

Answer: (B)

Streaming moves data over a network in small chunks so playback can begin before the full file arrives. The reason this option is the best is that it captures how streaming works: the video is downloaded in the background in pieces, and playback starts before the entire file is downloaded, continuing as more data arrives. This contrasts with needing to wait until the whole file is downloaded before viewing. Also, streaming typically uses buffering to smooth playback, so the idea that no buffering is required isn’t accurate.

Streaming moves data over a network in small chunks so playback can begin before the full file arrives. The reason this option is the best is that it captures how streaming works: the video is downloaded in the background in pieces, and playback starts before the entire file is downloaded, continuing as more data arrives. This contrasts with needing to wait until the whole file is downloaded before viewing. Also, streaming typically uses buffering to smooth playback, so the idea that no buffering is required isn’t accurate.