This DOP-C02 practice question tests your understanding of security and compliance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A company uses AWS Organizations to manage multiple accounts. The security team wants to ensure that no member account can disable AWS CloudTrail or delete CloudTrail logs. What is the most effective way to enforce this control?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply a Service Control Policy that denies cloudtrail:DeleteTrail and cloudtrail:StopLogging.
Option D is correct because a Service Control Policy (SCP) can deny actions like cloudtrail:DeleteTrail and cloudtrail:StopLogging across all accounts in the organization. Option A is wrong because CloudTrail is a regional service, and disabling in one region would still affect logs. Option B is wrong because IAM policies are per-account and can be overridden by account admins. Option C is wrong because limiting to one trail is not a control; accounts could still modify that trail.
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.
✗
Require all accounts to use the same CloudTrail trail.
Why it's wrong here
Accounts could still stop logging to that trail.
✓
Apply a Service Control Policy that denies cloudtrail:DeleteTrail and cloudtrail:StopLogging.
Why this is correct
SCPs are applied at the organization level and cannot be overridden by account admins.
Related concept
Standard ACLs match source addresses.
✗
Create an IAM policy in each account that denies cloudtrail:DeleteTrail.
Why it's wrong here
Account admins can remove this policy.
✗
Configure CloudTrail to log to an S3 bucket in a centralized logging account and deny access to the bucket from member accounts.
Why it's wrong here
This does not prevent member accounts from stopping CloudTrail in their own account.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 DOP-C02 ACL questions on filtering logic and placement.
Security and Compliance — This question tests Security and Compliance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Apply a Service Control Policy that denies cloudtrail:DeleteTrail and cloudtrail:StopLogging. — Option D is correct because a Service Control Policy (SCP) can deny actions like cloudtrail:DeleteTrail and cloudtrail:StopLogging across all accounts in the organization. Option A is wrong because CloudTrail is a regional service, and disabling in one region would still affect logs. Option B is wrong because IAM policies are per-account and can be overridden by account admins. Option C is wrong because limiting to one trail is not a control; accounts could still modify that trail.
What should I do if I get this DOP-C02 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 DOP-C02 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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