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AWS Certified Solutions Architect study material · question 60 of 500
Why do AWS services that encrypt data at rest typically use a KMS grant rather than editing the key policy?
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Answer: A. A grant can be created, used and retired without changing any policy
Grants suit temporary permission: the service creates one on the user's behalf, uses it, and retires it when the work finishes.
Source: Grants in AWS KMS (Amazon Web Services) — Grants in AWS KMS