- A
Create an IAM policy in each account that requires the CostCenter tag.
Why wrong: Not centralized and difficult to manage across many accounts.
- B
Use AWS Config rules to identify untagged resources and automatically tag them.
Why wrong: Detective and reactive; does not prevent creation of untagged resources.
- C
Create a tag policy in AWS Organizations that requires the CostCenter tag on resources.
Tag policies centrally enforce tagging rules across all accounts.
- D
Use an SCP to deny resource creation if the CostCenter tag is missing.
Why wrong: SCPs can enforce, but tag policies are a more direct and manageable solution.
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 and wants to enable cost allocation across business units using tags. They require that all resources are tagged with a 'CostCenter' tag. What is the most effective way to enforce this?
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
Create a tag policy in AWS Organizations that requires the CostCenter tag on resources.
Option D is correct because AWS Organizations has a tag policy feature that can enforce tags on resources during creation. Option A is wrong because SCPs can deny creation without tags, but tag policies are more specific. Option B is wrong because AWS Config can detect but not enforce. Option C is wrong because IAM policies can enforce but require per-account configuration.
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.
- ✗
Create an IAM policy in each account that requires the CostCenter tag.
Why it's wrong here
Not centralized and difficult to manage across many accounts.
- ✗
Use AWS Config rules to identify untagged resources and automatically tag them.
Why it's wrong here
Detective and reactive; does not prevent creation of untagged resources.
- ✓
Create a tag policy in AWS Organizations that requires the CostCenter tag on resources.
Why this is correct
Tag policies centrally enforce tagging rules across all accounts.
Related concept
Standard ACLs match source addresses.
- ✗
Use an SCP to deny resource creation if the CostCenter tag is missing.
Why it's wrong here
SCPs can enforce, but tag policies are a more direct and manageable solution.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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 SAP-C02 ACL questions on filtering logic and placement.
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Design Solutions for Organizational Complexity — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Create a tag policy in AWS Organizations that requires the CostCenter tag on resources. — Option D is correct because AWS Organizations has a tag policy feature that can enforce tags on resources during creation. Option A is wrong because SCPs can deny creation without tags, but tag policies are more specific. Option B is wrong because AWS Config can detect but not enforce. Option C is wrong because IAM policies can enforce but require per-account configuration.
What should I do if I get this SAP-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 SAP-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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Last reviewed: Jun 20, 2026
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