- A
AWS Cost Explorer
Correct. Cost Explorer provides a customizable dashboard where you can group costs by tags, filter by service, and see untagged costs. It supports the required granularity for multi-account consolidated billing views.
- B
AWS Budgets
Why wrong: Incorrect. AWS Budgets enables you to set cost or usage budgets and receive alerts when thresholds are exceeded. It does not provide an interactive cost breakdown or grouping by custom tags.
- C
AWS Trusted Advisor
Why wrong: Incorrect. AWS Trusted Advisor inspects your AWS environment and makes recommendations in areas such as cost optimization, performance, and security. It does not allow you to generate custom cost reports grouped by tags.
- D
AWS Monthly Report (from Billing console)
Why wrong: Incorrect. The AWS Monthly Report provides a summary of charges by service and by account under consolidated billing, but it does not offer filtering or grouping by custom resource tags, nor does it show untagged costs separately.
CLF-C02 Billing, Pricing, and Support Practice Question
This CLF-C02 practice question tests your understanding of billing, pricing, and support. 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 has migrated to AWS and uses multiple accounts under AWS Organizations with consolidated billing. The finance team needs a monthly cost breakdown by business unit. Each business unit's AWS resources are tagged with a 'BusinessUnit' tag (e.g., 'Marketing', 'Engineering'). However, some resources are not tagged. The team wants to see both the cost per business unit (based on tagged resources) and the total cost of untagged resources, all in one view. They also need the ability to filter by AWS service (e.g., EC2, S3) for each business unit. Which AWS tool or feature should the finance team use to meet these requirements?
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
AWS Cost Explorer
AWS Cost Explorer provides a customizable dashboard that allows you to filter and group costs by tags (such as 'BusinessUnit') and by AWS service (e.g., EC2, S3). It can display both tagged and untagged resource costs in the same view, enabling the finance team to see a monthly breakdown per business unit alongside the total cost of untagged resources. This meets all the requirements without additional configuration.
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.
- ✓
AWS Cost Explorer
Why this is correct
Correct. Cost Explorer provides a customizable dashboard where you can group costs by tags, filter by service, and see untagged costs. It supports the required granularity for multi-account consolidated billing views.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Budgets
Why it's wrong here
Incorrect. AWS Budgets enables you to set cost or usage budgets and receive alerts when thresholds are exceeded. It does not provide an interactive cost breakdown or grouping by custom tags.
- ✗
AWS Trusted Advisor
Why it's wrong here
Incorrect. AWS Trusted Advisor inspects your AWS environment and makes recommendations in areas such as cost optimization, performance, and security. It does not allow you to generate custom cost reports grouped by tags.
- ✗
AWS Monthly Report (from Billing console)
Why it's wrong here
Incorrect. The AWS Monthly Report provides a summary of charges by service and by account under consolidated billing, but it does not offer filtering or grouping by custom resource tags, nor does it show untagged costs separately.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse AWS Budgets (which only monitors against thresholds) with Cost Explorer (which provides the required historical, filterable cost breakdown), or assume Trusted Advisor can generate cost reports when it only offers optimization checks.
Trap categories for this question
Command / output trap
Incorrect. The AWS Monthly Report provides a summary of charges by service and by account under consolidated billing, but it does not offer filtering or grouping by custom resource tags, nor does it show untagged costs separately.
Detailed technical explanation
How to think about this question
AWS Cost Explorer uses the Cost and Usage Reports (CUR) data to build its visualizations, and it supports tag-based cost allocation by leveraging the 'aws:createdBy' and user-defined tags. The 'Group by' feature allows you to aggregate costs by tag keys (e.g., BusinessUnit) and then further filter by service, giving a granular view. In a multi-account setup under AWS Organizations, Cost Explorer can aggregate data across all linked accounts, provided the management account has enabled the necessary permissions.
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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Billing, Pricing, and Support — study guide chapter
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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: AWS Cost Explorer — AWS Cost Explorer provides a customizable dashboard that allows you to filter and group costs by tags (such as 'BusinessUnit') and by AWS service (e.g., EC2, S3). It can display both tagged and untagged resource costs in the same view, enabling the finance team to see a monthly breakdown per business unit alongside the total cost of untagged resources. This meets all the requirements without additional configuration.
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
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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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