The answer is the policy lacks auditing or logging of access attempts, which represents the most significant control monitoring gap in AWS S3 bucket policy. While the policy correctly enforces HTTPS and restricts access to an internal IP range, it fails to implement any form of logging or monitoring, meaning that unauthorized access attempts—whether from outside the allowed range or via non-HTTPS protocols—go completely undetected. On the CRISC exam, this question tests your understanding that technical controls like encryption and network restrictions are insufficient without detective controls; a control monitoring gap exists when you can block but not observe. A common trap is focusing on what the policy does allow or deny rather than what it fails to capture. Remember the CRISC mantra: if you cannot log it, you cannot monitor it, and if you cannot monitor it, you cannot manage the risk.
CRISC Risk and Control Monitoring and Reporting Practice Question
This CRISC practice question tests your understanding of risk and control monitoring and reporting. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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.
Option D is correct because 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.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
The policy lacks auditing or logging of access attempts.
Why this is correct
Monitoring requires logs to detect violations.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related CRISC ACL questions on filtering logic and placement.
Risk and Control Monitoring and Reporting — This question tests Risk and Control Monitoring and Reporting — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The policy lacks auditing or logging of access attempts. — Option D is correct because 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.
What should I do if I get this CRISC question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related CRISC ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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