What is "stream scanning"?

Question

Options

• Ascanning streaming media for malware
• Bpassing pieces of a download to the client while the download is being scanned
• Cscanning multiple downloads at the same time
• Dpassing scanned pieces of the file between two different malware-scanning engines

• A
  3% (1)
• B
  90% (26)
• D
  7% (2)

Explanation

Stream scanning refers to the technique where a file being downloaded is scanned for malware in chunks, and each already-scanned portion is passed (streamed) to the client without waiting for the entire file to finish downloading first - making option B correct. This improves user experience by reducing wait time while still providing security coverage.

Why the distractors are wrong:

• A is wrong because stream scanning is not specific to streaming media (video/audio) - it applies to any file download.
• C is wrong because scanning multiple files simultaneously is called parallel scanning or concurrent scanning, not stream scanning.
• D is wrong because stream scanning involves one engine passing pieces to the client, not handing off chunks between two scanning engines (that would describe a chained or multi-engine pipeline).

Memory tip: Think of "stream" the way you think of video streaming - you watch the movie as it loads, not after it fully downloads. Stream scanning works the same way: you receive the file as it's being scanned, piece by piece.

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