All fault-tolerant techniques rely on__________________?
Correct answer: C. Redundancy
- A. Integrity
- B. Dependability
- C. Redundancy
- D. None of the mentioned
Explanation
Fault-tolerant systems use redundancy, such as duplicate components, data, or computations, so another element can provide service when one fails. Dependability is the broader goal, not the specific technique on which all fault tolerance relies.
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