Home / AWS Certified AI Practitioner (AIF-C01) / 5 Practice / AWS-AIF-502
KMS keys protect AI logs and data.
Limit who can decrypt.
Choose two designs.
Hint 1: Focus on the requirement Separate storage access from key use, limit principals and conditions, and monitor denied as well as successful key operations.
Hint 2: Key terms Review key-access minimization.
Key policyA resource policy that controls which principals may use or manage a cryptographic key.
Decrypt permissionAn authorization allowing ciphertext to be converted back into plaintext.
Deny eventA recorded operation rejected by an identity, resource, or key policy.
Key conditionA policy constraint based on context such as resource, action, principal, or network. × Incorrect Restrict key use by principal, purpose, resource, condition, and time, and monitor use, denials, administration, review, and emergency disablement.
Detailed explanation A Correct Limit encryption and decryption by principal, purpose, resource, condition, and duration
Unneeded decryption is blocked.
B Incorrect Give every application permission to use the key
Least privilege is violated.
C Incorrect Ignore denied key operations because data is encrypted
Attack signals are missed.
D Correct Monitor use, denials, administrative actions, review, and emergency disablement
Misuse can be detected and stopped.
Check official documentation Compare the following points with the official documentation.
AWS公式AIF-C01 Domain 5.2のKMS、IAM、鍵アクセス監視を確認する。
Official references Official documentation 1 Official documentation 2 What to confirm 暗号化を鍵の保護まで含むアクセス制御として運用できる。
Key points Notes Environment: AWS公式AIF-C01試験ガイドとAWS公式ドキュメントの確認 Compare the definition with the AIF-C01 objective and the service documentation before applying it. Keep the concept separate from a particular answer choice or implementation step. Foundation review Key policy A resource policy that controls which principals may use or manage a cryptographic key.
Decrypt permission An authorization allowing ciphertext to be converted back into plaintext.
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