PAS-C01 Design of SAP Workloads on AWS Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObject"
],
"Resource": "arn:aws:s3:::sap-backup-bucket/*"
}
]
}An SAP administrator created the IAM policy shown in the exhibit to allow an EC2 instance to back up to an S3 bucket. However, the backup fails with an access denied error. What is the most likely issue?
⚠ Common exam trap
The trap here is that candidates often focus on the object-level actions being correct and overlook the need for separate bucket-level permissions, assuming that granting `s3:PutObject` on `bucket-name/*` implicitly allows listing the bucket.
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
✓
The policy does not grant permissions on the bucket itself.
The IAM policy shown in the exhibit grants permissions on individual objects within the S3 bucket (using the `arn:aws:s3:::bucket-name/*` resource ARN) but does not grant any permissions on the bucket itself (using `arn:aws:s3:::bucket-name`). For backup operations, the EC2 instance typically needs to list the bucket or check its existence before writing objects, which requires `s3:ListBucket` or similar actions on the bucket resource. Without these bucket-level permissions, the backup fails with an access denied error.
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 policy does not grant permissions on the bucket itself.
Why this is correct
Missing s3:ListBucket permission on the bucket resource.
- ✗
The actions specified are insufficient for backup operations.
Why it's wrong here
The actions include PutObject and GetObject, which are sufficient.
- ✗
The resource ARN is incorrectly formatted.
Why it's wrong here
The ARN format is correct.
- ✗
The bucket is in a different region than the EC2 instance.
Why it's wrong here
S3 is global; region does not cause access denied.
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
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