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← SC-100: Microsoft Cybersecurity Architect
SC-100 · Server client IoT and OT security

Practice question 283 of 498 · easy

A manufacturer wants to limit compromise to one device identity. Which design is better than embedding one secret in the entire fleet?

Choose the single best answer.

  1. A.Unique device credentials with protected key storage
  2. B.The same certificate and private key copied to every device
  3. C.An unauthenticated telemetry endpoint
  4. D.A shared clear-text key in every firmware image
Show the answer and explanation

✓ Correct answer

  • Unique device credentials with protected key storage

Unique protected credentials limit the identity blast radius. Shared secrets and shared certificate private keys let compromise spread across devices. An unauthenticated endpoint cannot establish a trustworthy device identity.

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