AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question
An operations engineer is investigating why an EC2 instance that uses an IAM role cannot upload objects to an Amazon S3 bucket in the same account. The role's identity policy explicitly allows s3:PutObject on the bucket. CloudTrail logs for the failed API call show an AccessDenied error. The engineer wants to quickly determine whether the deny originates from the role's identity policy or the bucket's resource policy without manually examining JSON documents. Which AWS tool should the engineer use?
Use the IAM policy simulator to test the role against the bucket and action.
Review findings from IAM Access Analyzer for the S3 bucket.
Initiate an Amazon Inspector assessment of the EC2 instance.
Run the AWS Trusted Advisor security check for Amazon S3 permissions.
The IAM policy simulator lets you specify an IAM principal, the resource ARN, and the action you are testing. It evaluates the combined effect of identity-based and resource-based policies and shows whether the request is allowed or denied, making it the fastest way to pinpoint which policy is responsible for an AccessDenied result. AWS Trusted Advisor does not simulate individual requests, IAM Access Analyzer focuses on identifying unintended external sharing rather than troubleshooting specific denies, and Amazon Inspector evaluates software vulnerabilities, not IAM permissions.
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What is the IAM Policy Simulator?
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What are resource policies in AWS?
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Can IAM Access Analyzer troubleshoot AccessDenied errors?
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What is the IAM policy simulator and how does it work?
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How do identity-based policies differ from resource-based policies in AWS?
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What kinds of policies does IAM Access Analyzer focus on?
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AWS Certified CloudOps Engineer Associate SOA-C03
Security and Compliance
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