CLF-C02 Billing, Pricing, and Support Practice Question
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?
⚠ Common exam trap
Many candidates 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.
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.
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
AWS Cost Explorer is the cost management service that provides an interactive dashboard for visualizing and analyzing historical cost and usage data. It lets you group or filter by services, accounts, regions, and custom cost allocation tags, and supports viewing untagged costs separately. With consolidated billing, you can break down spend across all accounts and see forecasts, making it the correct tool for this need.
- ✗
AWS Budgets
Why it's wrong here
AWS Budgets is designed to monitor cost and usage against custom thresholds and to alert you when you exceed or are forecasted to exceed them. While budgets can apply filters such as tags, services, or linked accounts, its purpose is proactive notification, not interactive analysis. It does not produce a detailed cost report or a visual breakdown that groups resources by tags or explicitly lists untagged costs, so it fails the requirement.
When this WOULD be correct
A company needs to set a monthly spending limit for each business unit and receive alerts when costs approach or exceed the budget. AWS Budgets would be the correct tool to create cost budgets with 'BusinessUnit' tag filters and configure notifications.
- ✗
AWS Trusted Advisor
Why it's wrong here
AWS Trusted Advisor is an advisory service that inspects your account for best-practice gaps in cost optimization, performance, security, and fault tolerance. It can recommend actions like eliminating idle resources or reserved capacity discounts, but it does not offer a customizable cost report by tags or a view of untagged spend. Since the question asks for cost breakdown and grouping, Trusted Advisor is not the right tool.
When this WOULD be correct
A company wants to identify underutilized EC2 instances to reduce costs. Trusted Advisor's cost optimization checks would recommend right-sizing or stopping idle instances.
- ✗
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.
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.
✓AWS Cost ExplorerCorrect answer▾
Why this is correct
AWS Cost Explorer is the cost management service that provides an interactive dashboard for visualizing and analyzing historical cost and usage data. It lets you group or filter by services, accounts, regions, and custom cost allocation tags, and supports viewing untagged costs separately. With consolidated billing, you can break down spend across all accounts and see forecasts, making it the correct tool for this need.
✗AWS BudgetsWrong answer — click to see why▾
Why this is wrong here
AWS Budgets allows you to set cost and usage budgets and receive alerts, but it does not provide a detailed, filterable cost breakdown by business unit and service, nor does it show untagged resource costs in a single view.
★ When this WOULD be the correct answer
A company needs to set a monthly spending limit for each business unit and receive alerts when costs approach or exceed the budget. AWS Budgets would be the correct tool to create cost budgets with 'BusinessUnit' tag filters and configure notifications.
Why candidates choose this
Candidates may think AWS Budgets can generate cost breakdowns because it can filter by tags, but they overlook that Budgets is primarily for monitoring and alerting on cost thresholds, not for interactive analysis and reporting.
✗AWS Trusted AdvisorWrong answer — click to see why▾
Why this is wrong here
AWS Trusted Advisor provides best practice checks (cost optimization, performance, security, fault tolerance, service limits) but does not offer customizable cost breakdowns by tags or filtering by service per business unit.
★ When this WOULD be the correct answer
A company wants to identify underutilized EC2 instances to reduce costs. Trusted Advisor's cost optimization checks would recommend right-sizing or stopping idle instances.
Why candidates choose this
Candidates may think Trusted Advisor covers cost-related recommendations, but it lacks the granular, tag-based cost reporting and filtering required in this question.
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?”
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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About these practice questions
This CLF-C02 question is part of Courseiva's 988-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
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.