DEA-C01 Data Store Management Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetObject",
"s3:PutObject"
],
"Resource": "arn:aws:s3:::example-bucket/*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "10.0.0.0/24"
}
}
},
{
"Effect": "Deny",
"Action": "s3:*",
"Resource": "arn:aws:s3:::example-bucket/*",
"Condition": {
"Bool": {
"aws:SecureTransport": "false"
}
}
}
]
}Refer to the exhibit. A data engineer applies this bucket policy to an S3 bucket. A user within the 10.0.0.0/24 IP range attempts to upload an object to the bucket using an HTTP (non-HTTPS) request. What is the outcome?
⚠ Common exam trap
The DEA-C01 exam often tests the precedence of explicit Deny over Allow in IAM policies, and the trap here is that candidates focus on the IP range in the Allow statement and overlook the Deny condition that blocks non-HTTPS requests.
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 upload fails because the request is not using HTTPS.
The bucket policy includes a condition `aws:SecureTransport` set to `false`, which explicitly denies any request that does not use HTTPS. Since the user is making an HTTP (non-HTTPS) request, the Deny statement overrides any Allow statement, causing the upload to fail. The correct answer is D.
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 upload succeeds because the Allow statement grants permission.
Why it's wrong here
An explicit Allow does not override a condition inside that same statement; the aws:SecureTransport condition evaluates to false for HTTP, so the statement does not apply and the request is denied. Unconditional Allow statements are what grant access regardless of transport.
- ✗
The upload succeeds because the user's IP is allowed.
Why it's wrong here
The Allow statement is conditioned on aws:SecureTransport being true, and an HTTP request sets it to false, so the condition is unmet and the request is denied despite the matching IP. IP-based Allow statements without transport conditions permit such uploads.
- ✗
The upload fails because the user's IP is not in the allowed range for PutObject.
Why it's wrong here
The policy's Allow statement for PutObject already covers 10.0.0.0/24, so the IP is within the permitted range; the denial arises from the separate condition requiring aws:SecureTransport. IP-range exclusions apply when the policy's NotIpAddress or IpAddress condition omits the caller's address.
- ✓
The upload fails because the request is not using HTTPS.
Why this is correct
The bucket policy includes a Deny statement conditioned on aws:SecureTransport being false, which rejects any non-HTTPS request regardless of source IP. The 10.0.0.0/24 user's HTTP upload therefore fails, satisfying the explicit deny that overrides the IP-based allowance.
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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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-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 DEA-C01 exam.