PAS-C01 Operations and Maintenance Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:ListBucket",
"Resource": "arn:aws:s3:::sap-backup-bucket"
},
{
"Effect": "Allow",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::sap-backup-bucket/*"
},
{
"Effect": "Deny",
"Action": "s3:DeleteObject",
"Resource": "arn:aws:s3:::sap-backup-bucket/*"
}
]
}Refer to the exhibit. An SAP administrator has created this IAM policy for a backup user. The user can list and download backups but cannot delete them. However, the user is unable to list the objects in the bucket. What is the most likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
There is an additional bucket policy that denies s3:ListBucket to this user.
The IAM policy shown grants s3:ListBucket permission on the bucket, so the user should be able to list objects. However, the user cannot list objects, indicating an additional bucket policy explicitly denies s3:ListBucket for this user. Bucket policies override IAM permissions when a Deny is present. Option A is incorrect because the policy does include s3:ListBucket. Option C is incorrect because s3:GetObjectVersion is not required to list objects. Option D is incorrect because the Deny statement only affects s3:DeleteObject, not s3:ListBucket.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The IAM policy does not include s3:ListBucket for the bucket.
Why it's wrong here
Incorrect. The IAM policy explicitly includes s3:ListBucket for the bucket, so this is not the cause.
- ✓
There is an additional bucket policy that denies s3:ListBucket to this user.
Why this is correct
Correct. The user has the necessary IAM permissions to list, so the inability to list must be due to a bucket policy that denies s3:ListBucket.
- ✗
The user needs s3:GetObjectVersion permission to list objects.
Why it's wrong here
Incorrect. s3:GetObjectVersion is used to retrieve a specific version of an object, not to list objects.
- ✗
The Deny statement also denies s3:ListBucket because of the wildcard resource.
Why it's wrong here
Incorrect. The Deny statement only denies s3:DeleteObject, not s3:ListBucket. The wildcard resource does not affect ListBucket.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.