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← SC-100: Microsoft Cybersecurity Architect
SC-100 · Identity authentication and access

Practice question 159 of 498 · medium

A new key version exists, but a service keeps using a pinned old version. What should rotation validation include?

Choose the single best answer.

  1. A.Immediate deletion of every historical version
  2. B.Only the key creation timestamp
  3. C.Consumer reference and cache updates plus a safe retirement test
  4. D.A guarantee that all consumers automatically switch
Show the answer and explanation

✓ Correct answer

  • Consumer reference and cache updates plus a safe retirement test

Rotation must coordinate consumer adoption and safe retirement. Creation alone proves no adoption, deleting historical keys can break recovery/decryption, and automatic switching is service-dependent.

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