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Computer Science Medium NTS Uploaded: 13 Aug 2026

Which of the following best describes a 'zero-day' vulnerability?

  • A A well-known, patched flaw
  • B A flaw unknown to the software vendor and unpatched
  • C A type of firewall
  • D A hardware defect
Correct Answer: Option B — A flaw unknown to the software vendor and unpatched
Explanation:
A zero-day vulnerability is a software flaw unknown to the vendor, meaning there has been zero days to develop and release a patch, making i...
Submitted by: PaperMCQs
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