AWS - S3 FundamentalsAfter running a script to upload files to an S3 bucket, you receive an 'Access Denied' error. What is the most probable cause?AThe S3 bucket is full and cannot accept more filesBThe IAM user or role lacks the necessary S3 permissionsCThe file size exceeds the maximum allowed by S3DThe AWS CLI version is outdatedCheck Answer
Step-by-Step SolutionSolution:Step 1: Analyze the errorAn 'Access Denied' error typically indicates permission issues.Step 2: Check permissionsThe IAM user or role must have explicit permissions to upload to the target bucket.Step 3: Evaluate other optionsS3 buckets do not have size limits that cause denial, file size limits are large, and CLI version issues usually cause different errors.Final Answer:The IAM user or role lacks the necessary S3 permissions -> Option BQuick Check:Access Denied usually means permission problems [OK]Quick Trick: Access Denied = missing or insufficient permissions [OK]Common Mistakes:MISTAKESAssuming bucket size limits cause Access DeniedBlaming file size without checking permissionsIgnoring IAM policies and roles
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