DEA-C01 Data Security and Governance Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": "*",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::my-data-bucket/*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "10.0.0.0/24"
}
}
},
{
"Effect": "Deny",
"Principal": "*",
"Action": "s3:*",
"Resource": "arn:aws:s3:::my-data-bucket/*",
"Condition": {
"Bool": {
"aws:SecureTransport": "false"
}
}
}
]
}Refer to the exhibit. A data engineer applies this bucket policy to an S3 bucket named my-data-bucket. The bucket contains sensitive data. The company's security team reports that data was accessed from an IP address outside the allowed range. What is the MOST likely reason that the policy failed to block the unauthorized access?
⚠ Common exam trap
A common mix-up: candidates assume a Deny statement with any condition will block all unauthorized access, but in reality, each condition must be explicitly specified to deny the intended 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 Deny statement does not restrict access based on IP address; it only denies non-HTTPS requests.
The Deny statement in the policy only denies requests that are not using HTTPS (SecureTransport: false). It does not include any condition to restrict access based on IP address. Therefore, a request made from an IP outside the allowed range but using HTTPS would not be denied by this policy, allowing unauthorized access to the sensitive data.
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 Deny statement's condition on SecureTransport overrides the IP condition.
Why it's wrong here
SecureTransport condition does not affect IP-based access.
- ✗
The policy has a syntax error in the Condition element.
Why it's wrong here
The syntax is correct.
- ✓
The Deny statement does not restrict access based on IP address; it only denies non-HTTPS requests.
Why this is correct
The Deny only applies to non-SecureTransport, not to IP addresses outside the allowed range.
- ✗
The bucket policy does not apply to requests made from within the same AWS account.
Why it's wrong here
Bucket policies apply to all principals, including same account.
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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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.