hardMultiple ChoiceObjective-mapped
CRISC Practice Question: Refer to the exhibit
Exhibit
{
"AccessControlPolicy": {
"Version": "1.0",
"Statement": [
{
"Effect": "Allow",
"Action": ["s3:GetObject"],
"Resource": "arn:aws:s3:::critical-data/*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "10.0.0.0/8"
}
}
},
{
"Effect": "Deny",
"Action": "s3:*",
"Resource": "arn:aws:s3:::critical-data/*",
"Condition": {
"Bool": {
"aws:SecureTransport": "false"
}
}
}
]
}
}Refer to the exhibit. A risk analyst is reviewing an AWS S3 bucket policy. What is the MOST significant control monitoring gap in 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 lacks auditing or logging of access attempts.
The policy only restricts to internal IP range and requires HTTPS, but it does not log access attempts. Without logging, unauthorized attempts cannot be monitored. Option A is wrong because HTTPS is required. Option B is wrong because internal IP range is allowed. Option C is wrong because Deny for non-HTTPS is present, but logging is missing.
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 restrict access to specific internal IPs.
Why it's wrong here
Internal range is sufficiently restrictive.
- ✗
The policy allows HTTPS access from any internal IP.
Why it's wrong here
Not a gap; it's per design.
- ✗
The policy denies non-HTTPS access but does not enforce encryption for allowed access.
Why it's wrong here
HTTPS is enforced via Deny.
- ✓
The policy lacks auditing or logging of access attempts.
Why this is correct
Monitoring requires logs to detect violations.
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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