CLF-C02 Billing, Pricing, and Support Practice Question
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?
⚠ Common exam trap
Many 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.
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.
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.
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.
- ✗
Enable the AWS Cost Explorer default reports.
Why it's wrong here
Cost Explorer's default reports are pre-built views (e.g., monthly costs by service or linked account) that render immediately using standard cost dimensions. Enabling these reports only toggles the visibility of canned visualizations, and it does not register or activate custom tag keys for cost allocation. Tag keys must first be activated in the billing console to become selectable filter dimensions in Cost Explorer, regardless of which default reports are enabled.
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
AWS Budgets allows you to create cost and usage budgets and apply tag filters to narrow what the budget tracks, but the tag filter dropdown is populated only with tag keys that have already been activated for cost allocation. Creating a budget and attempting to use an unactivated tag will fail because the tag isn't known to the cost management system; the budget creation process does not trigger activation. You must activate the tag keys separately in the Billing and Cost Management console before the tag can be used as a budget filter.
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
AWS Support plans govern the level of technical support, architectural guidance, and operational tooling (e.g., Trusted Advisor, infrastructure event management, or a Technical Account Manager), not the data dimensions available in cost reporting. Cost allocation tag activation is a separate setting in the AWS Billing and Cost Management console; no Support plan tier can make unactivated tag keys appear as filter dimensions in Cost Explorer, budgets, or reports. Therefore, configuring the Support plan does not address the missing tag filter.
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?”
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.