Selected MCQ

Current Question
What is a 'zero-day' vulnerability?
  • A. A bug fixed before release
  • B. A known weakness with an immediate patch
  • C. A security flaw unknown to the vendor
  • D. A deprecated protocol
Correct Answer: C
Explanation:
A zero-day is a security hole not known to the software maker, with no available patch yet.
Related Question 1
In a Zero Trust security model, which of the following principles is emphasized?
  • A. Assume the network perimeter is secure
  • B. Verify explicitly every access request
  • C. Trust any device inside the office network
  • D. Use static passwords only
Correct Answer: B
Explanation:
Zero Trust means "never trust, always verify" – everything must be authenticated and authorized.
Related Question 2
What unique findings did the Perseverance rover detect in Mars' Jezero Crater in 2025?
  • A. Liquid water lakes
  • B. Leopard-like spots on rocks, hinting at past life
  • C. Active volcanic vents
  • D. Earth-like atmosphere samples
Correct Answer: B
Explanation:
It found reddish "leopard spots" on rocks that may be linked to ancient microbial activity.