Which of the following are additional access control objectives?

Question

Options

• AConsistency and utility
• BReliability and utility
• CUsefulness and utility
• DConvenience and utility

• B
  95% (19)
• D
  5% (1)

Explanation

Reliability and utility are recognized as additional access control objectives in security frameworks beyond the core CIA triad (Confidentiality, Integrity, Availability). Reliability ensures the access control system performs consistently and dependably, while utility ensures the system remains functional and serves its intended purpose for authorized users - both are distinct, complementary goals.

Why the distractors fail:

• A (Consistency and utility): "Consistency" describes a property of reliability, not a separate objective - it's redundant rather than additive.
• C (Usefulness and utility): "Usefulness" and "utility" are near-synonyms; pairing them would be redundant, not two distinct objectives.
• D (Convenience and utility): "Convenience" is not a security objective - security design often deliberately sacrifices convenience, so it has no standing as an access control goal.

Memory tip: Think R.U. - Reliability keeps the system working, Utility keeps it useful. Both add value beyond CIA without overlapping with it. If two words in an option mean the same thing (C) or one isn't a security term (D, A), eliminate it.

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