Question 852 of 1,621
ANS-C01 Network Security, Compliance and Governance Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": "*",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::example-bucket/*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "192.0.2.0/24"
}
}
}
]
}Refer to the exhibit. A security engineer is reviewing this S3 bucket policy. The bucket contains sensitive data that should only be accessible from the corporate network (192.0.2.0/24). What is a potential security issue with this policy?
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 require authentication; anonymous access is allowed from the specified IP range
The policy allows any principal (Principal: '*') to perform the s3:GetObject action under the condition that the request comes from the specified IP range. However, this condition only checks the IP address; it does not require authentication. If the bucket is publicly accessible (no bucket policy or ACL denying anonymous access), then unauthenticated requests from the allowed IP range would be allowed, which is a security issue. Option A is wrong because the condition belongs on the Action element, not the Principal. Option B is wrong because the Resource ARN includes the bucket name correctly (arn:aws:s3:::example-bucket/*). Option D is wrong because the IP range is specific and appropriate for the requirement.
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 condition should be applied to the Principal element
Why it's wrong here
Conditions are applied to the statement, not to the principal directly.
- ✗
The Resource ARN is missing the bucket name
Why it's wrong here
The ARN is correct: arn:aws:s3:::example-bucket/*
- ✓
The policy does not require authentication; anonymous access is allowed from the specified IP range
Why this is correct
The Principal is "*", which includes anonymous users.
- ✗
The IP address range is not specific enough
Why it's wrong here
The range is specific and correct for the corporate network.
Visual reference
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 |
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Last reviewed: Jun 20, 2026
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