Medium1 markMultiple Choice
Domain 1.3: Data SecurityDomain 1SecurityS3Encryption

AWS SAA-C03 · Question 20 · Domain 1.3: Data Security

A company wants to store sensitive documents in Amazon S3. The security policy requires that the data is encrypted at rest. The company wants AWS to manage the encryption keys, but they also need an audit trail showing when the keys were used and by whom. Which TWO encryption options meet these requirements? (Select TWO.)

Answer options:

A.

Server-Side Encryption with Amazon S3 Managed Keys (SSE-S3)

B.

Server-Side Encryption with AWS KMS keys (SSE-KMS) using an AWS managed key

C.

Server-Side Encryption with AWS KMS keys (SSE-KMS) using a Customer managed key

D.

Server-Side Encryption with Customer-Provided Keys (SSE-C)

E.

Client-Side Encryption using an on-premises key management system

How to approach this question

Identify that an audit trail for key usage requires AWS KMS (SSE-KMS). Both AWS managed and Customer managed keys in KMS provide CloudTrail logging.

Full Answer

B,C
To get an audit trail of when encryption keys are used, you must use AWS KMS (SSE-KMS). KMS integrates with AWS CloudTrail to log all key usage. You can use either an AWS managed key or a Customer managed key in KMS to achieve this.

Common mistakes

Choosing SSE-S3, which encrypts the data but does not provide a separate audit trail for key usage.

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