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Question 228 - DVA-C01 discussion

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A Developer is storing sensitive documents in Amazon S3 that will require encryption at rest. The encryption keys must be rotated annually, at least. What is the easiest way to achieve this?

A.
Encrypt the data before sending it to Amazon S3
Answers
A.
Encrypt the data before sending it to Amazon S3
B.
Import a custom key into AWS KMS with annual rotation enabled
Answers
B.
Import a custom key into AWS KMS with annual rotation enabled
C.
Use AWS KMS with automatic key rotation
Answers
C.
Use AWS KMS with automatic key rotation
D.
Export a key from AWS KMS to encrypt the data
Answers
D.
Export a key from AWS KMS to encrypt the data
Suggested answer: C

Explanation:

https://docs.aws.amazon.com/kms/latest/developerguide/rotate-keys.html

https://docs.aws.amazon.com/kms/latest/developerguide/custom-key-store-overview.htmlYou can use the same techniques to view and manage the CMKs in your custom key store that you use for CMKs in the AWS KMS key store. You can control access with IAM and key policies, create tags and aliases, enable and disable the CMKs, and schedule key deletion. You can use the CMKs forcryptographic operations and use them with AWS services that integrate with AWS KMS. However,you cannot enable automatic key rotation and you cannot import key material into a CMK in a custom key store. Q: Can I rotate my keys? Yes. You can choose to have AWS KMS automatically rotate CMKs every year, provided that those keys were generated within AWS KMS HSMs. Automatic key rotation is not supported for imported keys, asymmetric keys, or keys generated in an AWS CloudHSM cluster using the AWS KMS custom key store feature. If you choose to import keys to AWS KMS or asymmetric keys or use a custom key store, you can manually rotate them by creating a new CMK and mapping an existing key alias from the old CMK to the new CMK. https://aws.amazon.com/kms/faqs/

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asked 16/09/2024
Lambert Shel Pablo
43 questions
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