- A
AWS Budgets + CloudWatch Billing Alarms
Why wrong: AWS Budgets and CloudWatch Billing Alarms are used for cost monitoring and alerts, not for generating detailed billing reports segmented by department.
- B
AWS Organizations consolidated billing + Cost Explorer grouped by linked account
AWS Organizations consolidated billing aggregates costs from all linked accounts, and Cost Explorer can group costs by linked account ID, allowing department-level cost allocation when each department uses a separate account.
- C
AWS Pricing Calculator + Cost and Usage Report
Why wrong: AWS Pricing Calculator is used for estimating costs before deployment, not for generating reports from actual usage; while the Cost and Usage Report provides granular billing data, it does not inherently provide department-level segmentation without additional grouping, which is already achieved by the combination in Option B.
- D
AWS Config + AWS Trusted Advisor
Why wrong: AWS Config and AWS Trusted Advisor are configuration and optimization tools; they do not provide cost allocation or billing report generation capabilities.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. 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 needs to generate detailed AWS billing reports segmented by department. Each department uses distinct AWS accounts under an AWS Organization. Which two mechanisms work together to provide department-level cost allocation?
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 Organizations consolidated billing + Cost Explorer grouped by linked account
Option B is correct because AWS Organizations consolidated billing rolls up costs from all linked accounts into a single payer account, and Cost Explorer can group costs by linked account ID, enabling department-level cost allocation when each department uses a distinct account. Option C is incorrect because AWS Pricing Calculator is only for pre-deployment cost estimation, not for generating actual billing reports from usage data; the Cost and Usage Report provides detailed billing data but cannot alone provide department-level allocation without being combined with account grouping, which is already covered by Option B.
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 Budgets + CloudWatch Billing Alarms
Why it's wrong here
AWS Budgets and CloudWatch Billing Alarms are used for cost monitoring and alerts, not for generating detailed billing reports segmented by department.
- ✓
AWS Organizations consolidated billing + Cost Explorer grouped by linked account
Why this is correct
AWS Organizations consolidated billing aggregates costs from all linked accounts, and Cost Explorer can group costs by linked account ID, allowing department-level cost allocation when each department uses a separate account.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Pricing Calculator + Cost and Usage Report
Why it's wrong here
AWS Pricing Calculator is used for estimating costs before deployment, not for generating reports from actual usage; while the Cost and Usage Report provides granular billing data, it does not inherently provide department-level segmentation without additional grouping, which is already achieved by the combination in Option B.
- ✗
AWS Config + AWS Trusted Advisor
Why it's wrong here
AWS Config and AWS Trusted Advisor are configuration and optimization tools; they do not provide cost allocation or billing report generation capabilities.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse cost monitoring tools (like Budgets and Alarms) or configuration tools (like Config and Trusted Advisor) with actual cost allocation and reporting mechanisms, leading them to select options that sound plausible but lack the specific segmentation capability required.
Detailed technical explanation
How to think about this question
Under the hood, AWS Organizations consolidated billing creates a single bill for all member accounts, and Cost Explorer queries the AWS Cost and Usage Report (CUR) data stored in Amazon S3. By filtering or grouping by 'linked_account_id' in Cost Explorer, you can allocate costs to each department's account; this works because each account in the organization has a unique identifier that is tagged in the billing data. In a real-world scenario, if a company has 10 departments each with its own AWS account, the payer account can run Cost Explorer reports grouped by linked account to see each department's spend, enabling chargeback or showback processes.
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?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Organizations consolidated billing + Cost Explorer grouped by linked account — Option B is correct because AWS Organizations consolidated billing rolls up costs from all linked accounts into a single payer account, and Cost Explorer can group costs by linked account ID, enabling department-level cost allocation when each department uses a distinct account. Option C is incorrect because AWS Pricing Calculator is only for pre-deployment cost estimation, not for generating actual billing reports from usage data; the Cost and Usage Report provides detailed billing data but cannot alone provide department-level allocation without being combined with account grouping, which is already covered by Option B.
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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