The answer is to use AWS Organizations tag policies to enforce required tags on accounts, then activate cost allocation tags in the management account. This approach is correct because tag policies centrally define and enforce tagging rules across hundreds of accounts, ensuring consistent tag application at the resource level, while activating cost allocation tags in the management account automatically propagates those tags into AWS Cost Explorer and cost reports without any manual intervention or ongoing maintenance. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of governance at scale versus per-account manual tagging—a common trap is choosing AWS Config rules or Lambda-based remediation, which require ongoing maintenance and do not natively propagate tags to cost reports. The key distinction is that tag policies enforce compliance before resource creation, while cost allocation tag activation handles the reporting pipeline. Memory tip: think “Policy for enforcement, Activation for reporting”—two steps, zero ongoing effort.
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. 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 has a complex AWS environment with hundreds of accounts. They want to implement a tagging strategy that allows them to track costs by department and project. The tags must be propagated from resources to cost reports automatically. Which approach meets these requirements with minimal ongoing maintenance?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Organizations tag policies to enforce required tags on resources, and activate cost allocation tags in the management account.
Option B is correct because AWS Organizations tag policies allow you to define and enforce required tags across all accounts in the organization, ensuring consistent tagging. When you activate cost allocation tags in the management account, these tags are automatically propagated to AWS Cost Explorer and cost reports without any manual intervention or ongoing maintenance, meeting the requirement for minimal ongoing effort.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 a CloudFormation template that applies tags to all resources and deploy it via StackSets.
Why it's wrong here
This requires updating the template for new resources and does not enforce tagging on existing resources.
✓
Use AWS Organizations tag policies to enforce required tags on resources, and activate cost allocation tags in the management account.
Why this is correct
Tag policies enforce tags across accounts, and cost allocation tags are automatically activated.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AWS Config rules to detect untagged resources and trigger a Lambda function to add tags.
Why it's wrong here
This is reactive and adds operational overhead.
✗
Use AWS Cost Explorer to filter by resource tags after they are manually applied.
Why it's wrong here
Manual tagging is not scalable.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse reactive remediation (like Config rules with Lambda) with proactive enforcement (like tag policies), and overlook that cost allocation tags must be explicitly activated in the management account to appear in cost reports.
Detailed technical explanation
How to think about this question
Tag policies in AWS Organizations are evaluated at resource creation time and can be used to enforce tagging rules across all accounts in the organization. When you activate cost allocation tags in the management account, AWS automatically propagates these tags to cost reports, including AWS Cost Explorer and AWS Cost and Usage Reports, without any additional configuration per account. This approach leverages the native integration between Organizations and AWS Billing, ensuring that tags are consistently applied and tracked across the entire multi-account environment.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Organizations tag policies to enforce required tags on resources, and activate cost allocation tags in the management account. — Option B is correct because AWS Organizations tag policies allow you to define and enforce required tags across all accounts in the organization, ensuring consistent tagging. When you activate cost allocation tags in the management account, these tags are automatically propagated to AWS Cost Explorer and cost reports without any manual intervention or ongoing maintenance, meeting the requirement for minimal ongoing effort.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company has multiple AWS accounts and wants to ensure that all resources are tagged with a cost center tag. Which THREE steps should they take to enforce this?
hard
✓ A.Use AWS Organizations to define a tag policy that mandates the cost center tag.
B.Use AWS Config rules to detect untagged resources and trigger a Lambda function to add the tag.
✓ C.Use AWS CloudFormation templates that enforce tagging and use StackSets to deploy across accounts.
✓ D.Create a service control policy (SCP) that denies resource creation if the required tag is not present, for supported services.
E.Enable AWS Cost Explorer to report on untagged resources.
Why A: Option A is correct because AWS Organizations tag policies allow you to define rules for tagging resources across accounts in your organization. By specifying the cost center tag as mandatory in a tag policy, you can enforce that all resources must have this tag, and any non-compliant resources can be reported or prevented from being created, depending on the policy's enforcement mode.
Variation 2. A global company uses AWS Organizations with many OUs and accounts. The finance team needs to track costs by cost center, which is tagged on each resource. However, some resources are not tagged. Which solution will provide the MOST accurate cost allocation?
hard
A.Enable cost allocation tags and use AWS Cost Explorer to filter by tag.
B.Create AWS Budgets reports for each cost center using tag filters.
C.Export AWS Cost and Usage Reports to Amazon QuickSight and use tag-based filtering.
✓ D.Use AWS Cost Categories to group costs by tag value and set a default rule for untagged resources.
Why D: Option D is correct because AWS Cost Categories allow you to group costs by tag values and, crucially, set a default rule for untagged resources. This ensures that all resources—tagged or not—are assigned to a cost center, providing the most accurate cost allocation across the entire organization. Other options only filter or report on tagged resources, leaving untagged costs unallocated.
Variation 3. A company uses AWS Organizations with multiple accounts. The finance team needs to track costs by department, where each department uses resources across several accounts. What is the BEST way to allocate costs accurately?
medium
A.Use AWS Cost Explorer to view costs by linked account.
✓ B.Define cost allocation tags for each department and enable them in the Billing and Cost Management console.
C.Set up AWS Budgets for each department with alerts.
D.Create AWS Resource Groups for each department and use AWS Config to track costs.
Why B: Option B is correct because using cost allocation tags that propagate to all accounts and organizing resources by department allows accurate cost tracking in AWS Cost Explorer. Option A is wrong because linked account aggregation does not break down by department. Option C is wrong because resource groups are not for cost allocation. Option D is wrong because budgeting does not allocate costs.
Last reviewed: Jun 24, 2026
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