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Explain how Bucket Policies differ from IAM Policies.

General/Othereasy0.3 min readPremium
Frequency
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Asked at 1 company
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243
questions in General/Other
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151E|43M|49H
in this category
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1,863
across 7 categories
Asked at these companies
Capco
Expert AnswerPremium
58 wordsInterview-ready
**Bucket Policy**: Resource-based; attached to S3 bucket. Defines who can access that bucket; supports conditions (IP, MFA, encryption). Use for cross-account access. **IAM Policy**: Identity-based; attached to user/role/group. Defines what identity can do across resources. **Evaluation**: Both evaluated together. Bucket Policy for bucket-specific, cross-account; IAM for centralized identity management....
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