Which of the following statements about the availability concept of Information security management is true?

Question

Options

• AIt determines actions and behaviors of a single individual within a system.
• BIt ensures reliable and timely access to resources.
• CIt ensures that unauthorized modifications are not made to data by authorized personnel or processes.
• DIt ensures that modifications are not made to data by unauthorized personnel or processes.

• A
  4% (2)
• B
  88% (46)
• C
  6% (3)
• D
  2% (1)

Explanation

Availability (B) in the CIA triad means that information and resources are reliably accessible and usable by authorized users whenever needed. Option A (determining actions of a single individual) describes Accountability or Non-repudiation. Options C and D both describe Integrity - C refers to preventing authorized users from making unauthorized modifications, and D refers to preventing unauthorized users from modifying data. Only B correctly captures availability: ensuring timely and reliable access to resources.

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