- A
Activate the tag keys for cost allocation tracking.
Correct. After creating and applying tags to resources, the tags must be activated for cost allocation in the AWS Billing and Cost Management console. Only activated tags appear as dimensions in Cost Explorer and other cost management tools.
- B
Enable the AWS Cost Explorer default reports.
Why wrong: Incorrect. Enabling default reports in Cost Explorer provides pre-built visualizations but does not cause tags to become available as filter dimensions. Tag activation is a separate prerequisite.
- C
Create a budget using AWS Budgets with the tag filters.
Why wrong: Incorrect. While budgets can be filtered by tags, the tags must first be activated for cost allocation. Creating a budget does not activate the tags themselves.
- D
Configure the AWS Support plan to include cost analysis.
Why wrong: Incorrect. AWS Support plan level (e.g., Business, Enterprise) does not affect the availability of tag-based cost filtering. Cost allocation tag activation is independent of the Support plan.
CLF-C02 Billing, Pricing, and Support Practice Question
This CLF-C02 practice question tests your understanding of billing, pricing, and support. 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 uses multiple AWS accounts managed through AWS Organizations. The finance team wants to see a consolidated view of all costs across accounts, and also wants to filter costs by specific projects using custom tags that are applied to resources. The team has already created tag keys and applied them to resources in all accounts. What additional step must the team take in the Management Account to ensure these tags appear as cost allocation dimensions in AWS Cost Explorer?
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
Activate the tag keys for cost allocation tracking.
Option A is correct because in AWS Organizations, custom tags must be explicitly activated for cost allocation tracking in the Management Account's Billing and Cost Management console. Without this activation, the tags exist on resources but are not recognized as cost allocation dimensions in AWS Cost Explorer, so the finance team cannot filter costs by those tags. Activating the tag keys enables Cost Explorer to ingest the tag key-value pairs and present them as filtering dimensions in cost reports.
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.
- ✓
Activate the tag keys for cost allocation tracking.
Why this is correct
Correct. After creating and applying tags to resources, the tags must be activated for cost allocation in the AWS Billing and Cost Management console. Only activated tags appear as dimensions in Cost Explorer and other cost management tools.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable the AWS Cost Explorer default reports.
Why it's wrong here
Incorrect. Enabling default reports in Cost Explorer provides pre-built visualizations but does not cause tags to become available as filter dimensions. Tag activation is a separate prerequisite.
When this WOULD be correct
This option would be correct if the question asked: 'What step is needed to start viewing cost and usage data in AWS Cost Explorer for the first time?' Enabling default reports sets up the initial dashboards and reports.
- ✗
Create a budget using AWS Budgets with the tag filters.
Why it's wrong here
Incorrect. While budgets can be filtered by tags, the tags must first be activated for cost allocation. Creating a budget does not activate the tags themselves.
When this WOULD be correct
This option would be correct in a question asking how to set up cost alerts or notifications for specific tagged resources, such as: 'A company wants to receive an alert when costs for a specific project tag exceed a threshold. What should they do?'
- ✗
Configure the AWS Support plan to include cost analysis.
Why it's wrong here
Incorrect. AWS Support plan level (e.g., Business, Enterprise) does not affect the availability of tag-based cost filtering. Cost allocation tag activation is independent of the Support plan.
When this WOULD be correct
This would be correct if the question asked: 'What must a company do to get detailed cost analysis support from AWS for their consolidated billing?' In that case, upgrading to a Business or Enterprise Support plan enables access to AWS Support API and detailed cost analysis assistance.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓Activate the tag keys for cost allocation tracking.Correct answer▾
Why this is correct
Correct. After creating and applying tags to resources, the tags must be activated for cost allocation in the AWS Billing and Cost Management console. Only activated tags appear as dimensions in Cost Explorer and other cost management tools.
✗Enable the AWS Cost Explorer default reports.Wrong answer — click to see why▾
Why this is wrong here
Enabling default reports in AWS Cost Explorer does not activate custom tags for cost allocation; it only provides pre-built views of cost and usage data. The tags must be explicitly activated in the cost allocation tags section to appear as filters.
★ When this WOULD be the correct answer
This option would be correct if the question asked: 'What step is needed to start viewing cost and usage data in AWS Cost Explorer for the first time?' Enabling default reports sets up the initial dashboards and reports.
Why candidates choose this
Candidates may think that enabling default reports is necessary to make tags visible, confusing the activation of reports with the activation of cost allocation tags.
✗Create a budget using AWS Budgets with the tag filters.Wrong answer — click to see why▾
Why this is wrong here
Creating a budget with tag filters does not make tags appear as cost allocation dimensions in Cost Explorer; it only uses existing tags to set budget alerts. The required step is activating tag keys for cost allocation tracking in the Management Account.
★ When this WOULD be the correct answer
This option would be correct in a question asking how to set up cost alerts or notifications for specific tagged resources, such as: 'A company wants to receive an alert when costs for a specific project tag exceed a threshold. What should they do?'
Why candidates choose this
Candidates may think that creating a budget with tag filters is necessary to enable tag-based cost tracking, confusing the use of tags for budget alerts with their activation as cost allocation dimensions.
✗Configure the AWS Support plan to include cost analysis.Wrong answer — click to see why▾
Why this is wrong here
Configuring the AWS Support plan does not affect cost allocation dimensions in Cost Explorer. Cost allocation tags are activated separately in the Billing and Cost Management console, independent of support plan level.
★ When this WOULD be the correct answer
This would be correct if the question asked: 'What must a company do to get detailed cost analysis support from AWS for their consolidated billing?' In that case, upgrading to a Business or Enterprise Support plan enables access to AWS Support API and detailed cost analysis assistance.
Why candidates choose this
Candidates may think that higher support tiers provide more cost analysis features, or they confuse support plan capabilities with cost management features like Cost Explorer and cost allocation tags.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume applying tags to resources automatically makes them available in Cost Explorer, but AWS requires an explicit activation step in the Management Account to promote custom tags to cost allocation dimensions.
Detailed technical explanation
How to think about this question
Under the hood, AWS Cost Explorer retrieves cost allocation data from the AWS Cost and Usage Report (CUR), which includes only tags that have been activated in the 'Cost Allocation Tags' section of the Billing console. Activation triggers a backend process that adds the tag key to the CUR's resource-level line items, enabling Cost Explorer to aggregate and filter by that tag. A subtle behavior is that activation can take up to 24 hours to propagate, and tags applied to resources before activation will not appear retroactively unless the resources are updated after activation.
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.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Billing, Pricing, and Support — This question tests Billing, Pricing, and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Activate the tag keys for cost allocation tracking. — Option A is correct because in AWS Organizations, custom tags must be explicitly activated for cost allocation tracking in the Management Account's Billing and Cost Management console. Without this activation, the tags exist on resources but are not recognized as cost allocation dimensions in AWS Cost Explorer, so the finance team cannot filter costs by those tags. Activating the tag keys enables Cost Explorer to ingest the tag key-value pairs and present them as filtering dimensions in cost reports.
What should I do if I get this CLF-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.
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CLF-C02 exam.
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