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Distinguishing Redundancy and Diversity

publish date: 2026/10/08 19:55:50.295929 UTC

Redundancy and diversity are core strategies used to enhance system dependability. Which statement correctly distinguishes between these two concepts?

Redundancy removes checking code, whereas diversity adds extra physical locks.

Redundancy refers strictly to physical hardware, while diversity applies only to natural language specifications.

Redundancy means using different programming languages, while diversity means making exact duplicate copies of code.

Redundancy provides spare capacity or extra components, whereas diversity ensures those redundant components are of different types to prevent shared failure modes.

Reference

Software Engineering, Ian Sommerville, 9th edition

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Dependable Systems - Review

Distinguishing Redundancy and Diversity

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Reference

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