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SCS-C02 · Question #444

A company wants to store all objects that contain sensitive data in an Amazon S3 bucket. The company will use server-side encryption to encrypt the S3 bucket. The company's operations team manages…

The correct answer is B. Ensure that the operations team creates a bucket policy that requires requests to use server-side. Using SSE-KMS with customer-managed keys (CMKs) in AWS Key Management Service (KMS) allows the company to separate duties between the operations and security teams effectively. The operations team can enforce bucket policies that require objects to be encrypted with KMS keys…

Submitted by kavita_s· Mar 6, 2026Data Protection

Question

A company wants to store all objects that contain sensitive data in an Amazon S3 bucket. The company will use server-side encryption to encrypt the S3 bucket. The company's operations team manages access to the company's S3 buckets. The company's security team manages access to encryption keys. The company wants to separate the duties of the two teams to ensure that configuration errors by only one of these teams will not compromise the data by granting unauthorized access to plaintext data. Which solution will meet this requirement?

Options

  • AEnsure that the operations team configures default bucket encryption on the S3 bucket to use
  • BEnsure that the operations team creates a bucket policy that requires requests to use server-side
  • CEnsure that the operations team creates a bucket policy that requires requests to use server-side
  • DEnsure that the operations team creates a bucket policy that requires requests to use server-side

How the community answered

(19 responses)
  • A
    11% (2)
  • B
    84% (16)
  • D
    5% (1)

Explanation

Using SSE-KMS with customer-managed keys (CMKs) in AWS Key Management Service (KMS) allows the company to separate duties between the operations and security teams effectively. The operations team can enforce bucket policies that require objects to be encrypted with KMS keys, while the security team manages access to the keys through KMS key policies. This setup ensures that the operations team can manage the S3 bucket without access to the encryption keys, and the security team can control access to the keys without managing the bucket directly, fulfilling the company's need for duty separation and reducing the risk of unauthorized access to

Topics

#S3 encryption#AWS KMS#separation of duties#bucket policy

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