SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security governance. 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.
A company is using AWS CloudFormation to deploy infrastructure. The security team wants to enforce that all S3 buckets created by CloudFormation have encryption enabled. Which approach should be used to enforce this policy?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS CloudFormation Guard to validate templates
Option B is correct because a CloudFormation Guard rule can validate templates before deployment to ensure encryption is configured. Option A is wrong because SCPs cannot enforce resource configurations within a stack. Option C is wrong because CloudTrail cannot enforce. Option D is wrong because Service Catalog enforces on products, not on all CloudFormation templates.
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.
✗
Use AWS Service Catalog to enforce encryption
Why it's wrong here
Service Catalog works with pre-approved products, not directly with CloudFormation templates.
✓
Use AWS CloudFormation Guard to validate templates
Why this is correct
CloudFormation Guard can check for encryption settings before deployment.
Related concept
Standard ACLs match source addresses.
✗
Enable AWS CloudTrail to detect unencrypted buckets
Why it's wrong here
CloudTrail is detective, not preventive.
✗
Create an SCP to deny creation of unencrypted S3 buckets
Why it's wrong here
SCPs cannot enforce configuration within resources; they deny API actions, but encryption is a parameter.
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 SCS-C02 ACL questions on filtering logic and placement.
Management and Security Governance — This question tests Management and Security Governance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use AWS CloudFormation Guard to validate templates — Option B is correct because a CloudFormation Guard rule can validate templates before deployment to ensure encryption is configured. Option A is wrong because SCPs cannot enforce resource configurations within a stack. Option C is wrong because CloudTrail cannot enforce. Option D is wrong because Service Catalog enforces on products, not on all CloudFormation templates.
What should I do if I get this SCS-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 SCS-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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