- A
Create a new AWS Budget with a cost filter for the "Project" tag.
Why wrong: Incorrect. Creating a budget with a tag filter requires the tag to already be activated for cost allocation. The budget itself does not activate the tag, and budgets are used for setting spending limits and alerts, not for enabling tags as filters.
- B
Activate the "Project" cost allocation tag in the Billing and Cost Management console.
Correct. Activating the cost allocation tag in the Billing and Cost Management console makes the tag available for filtering in Cost Explorer and for inclusion in cost reports. This is the required step after applying tags to resources.
- C
Enable the AWS Cost and Usage Reports for the account.
Why wrong: Incorrect. While Cost and Usage Reports (CUR) can include tag information, the tags must still be activated as cost allocation tags before they appear in the reports or in Cost Explorer. Enabling CUR alone does not make the tag filterable in Cost Explorer.
- D
Create a custom cost category with a rule that uses the "Project" tag.
Why wrong: Incorrect. Cost categories are a feature that allow you to group costs based on rules, but they do not replace the need to activate cost allocation tags. The tag must be activated first before it can be used in cost categories or other cost management tools.
Quick Answer
The correct answer is to activate the "Project" cost allocation tag in the Billing and Cost Management console. This is necessary because AWS does not automatically enable user-defined tags for cost tracking; even after applying tags to resources, they remain inactive for billing purposes until you manually activate them as cost allocation tags. Once activated, AWS processes the tag data and makes it available as a filter in Cost Explorer within 24 hours. On the AWS Certified Cloud Practitioner CLF-C02 exam, this scenario tests your understanding of the distinction between resource tagging and cost allocation tagging—a common trap is assuming that simply applying a tag to a resource makes it immediately visible in Cost Explorer. Remember the key difference: resource tags are for organization, but cost allocation tags require explicit activation in the Billing console. A helpful memory tip is "Tag it, then activate it"—tags alone don't trigger cost visibility.
CLF-C02 Billing, Pricing, and Support Practice Question
This CLF-C02 practice question tests your understanding of billing, pricing, and support. 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 runs several applications in a single AWS account. Each application belongs to a different project (Project Alpha, Project Beta, Project Gamma). The company has already applied tags with the key "Project" and the corresponding project name to all AWS resources used by each project. The finance team wants to use AWS Cost Explorer to view and filter monthly costs by project. However, after tagging all resources, the "Project" tag does not appear as a filter option in Cost Explorer. What must the finance team do to make the "Project" tag available for cost filtering in 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 "Project" cost allocation tag in the Billing and Cost Management console.
The 'Project' tag does not appear in Cost Explorer because AWS does not automatically activate user-defined tags for cost tracking. The finance team must manually activate the 'Project' cost allocation tag in the Billing and Cost Management console under 'Cost Allocation Tags'. Once activated, AWS will process the tag data and make it available as a filter in Cost Explorer within 24 hours.
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 new AWS Budget with a cost filter for the "Project" tag.
Why it's wrong here
Incorrect. Creating a budget with a tag filter requires the tag to already be activated for cost allocation. The budget itself does not activate the tag, and budgets are used for setting spending limits and alerts, not for enabling tags as filters.
- ✓
Activate the "Project" cost allocation tag in the Billing and Cost Management console.
Why this is correct
Correct. Activating the cost allocation tag in the Billing and Cost Management console makes the tag available for filtering in Cost Explorer and for inclusion in cost reports. This is the required step after applying tags to resources.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable the AWS Cost and Usage Reports for the account.
Why it's wrong here
Incorrect. While Cost and Usage Reports (CUR) can include tag information, the tags must still be activated as cost allocation tags before they appear in the reports or in Cost Explorer. Enabling CUR alone does not make the tag filterable in Cost Explorer.
- ✗
Create a custom cost category with a rule that uses the "Project" tag.
Why it's wrong here
Incorrect. Cost categories are a feature that allow you to group costs based on rules, but they do not replace the need to activate cost allocation tags. The tag must be activated first before it can be used in cost categories or other cost management tools.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume all applied tags are automatically available for cost filtering, but AWS requires a separate activation step for user-defined cost allocation tags in the Billing console.
Detailed technical explanation
How to think about this question
Cost allocation tags in AWS are either AWS-generated (e.g., aws:createdBy) or user-defined (e.g., 'Project'). User-defined tags must be explicitly activated in the Billing and Cost Management console before they appear in Cost Explorer or AWS Budgets. Activation triggers a backend process that indexes the tag key-value pairs across all resources, making them available for filtering; this process can take up to 24 hours to reflect in the console.
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.
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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 "Project" cost allocation tag in the Billing and Cost Management console. — The 'Project' tag does not appear in Cost Explorer because AWS does not automatically activate user-defined tags for cost tracking. The finance team must manually activate the 'Project' cost allocation tag in the Billing and Cost Management console under 'Cost Allocation Tags'. Once activated, AWS will process the tag data and make it available as a filter in Cost Explorer within 24 hours.
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.
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 →
Same concept, more angles
1 more ways this is tested on CLF-C02
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 runs workloads for multiple teams in a single AWS account and wants to track and report costs per team in their monthly AWS bill. Which feature allows them to categorise and report AWS costs by team?
medium- A.AWS Budgets
- ✓ B.AWS Cost Allocation Tags
- C.AWS Organisations consolidated billing
- D.AWS Cost and Usage Report
Why B: AWS Cost Allocation Tags allow you to tag AWS resources with team-specific metadata (e.g., 'Team: Engineering') and then activate those tags in the Billing and Cost Management console. Once activated, AWS generates cost reports that group and summarize charges by those tags, enabling per-team cost tracking in the monthly bill. This is the correct feature because it directly categorizes costs at the resource level and reports them in billing data.
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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