What is the MOST appropriate AWS solution to encrypt data at rest in S3 with customer-managed keys?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
SSE-KMS integrates with AWS KMS for key control.
Correct answer(s): a. SSE-KMS on Amazon S3
Exam domain: Domain 3: Design Secure Architectures (24% weight on the official guide).
Official documentation & study links
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