CLF-C02 Billing, Pricing, and Support Practice Question
A company runs a fleet of production Amazon EC2 instances that operate 24/7 throughout the year. The CFO wants to reduce compute costs by committing to a consistent usage level. The finance team needs a tool that analyzes the company's historical EC2 usage and provides recommendations for the most cost-effective purchase options, including recommendations for both Reserved Instances and Savings Plans, with support for instance size flexibility. Which AWS tool should the finance team use?
⚠ Common exam trap
Test-takers frequently confuse AWS Cost Explorer (an analysis and recommendation tool) with AWS Budgets (a cost tracking and alerting tool), or assume Trusted Advisor covers purchase recommendations when it only provides generic 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 comprehensive analysis of historical EC2 usage and generates tailored recommendations for both Reserved Instances (RI) and Savings Plans, including support for instance size flexibility. This directly meets the CFO's requirement to commit to a consistent usage level while optimizing costs based on actual usage patterns.
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
Why it's wrong here
Incorrect. AWS Budgets allows you to set custom budgets to track your cost and usage and alerts you when you exceed thresholds. It does not analyze historical usage to provide purchase recommendations for Reserved Instances or Savings Plans.
When this WOULD be correct
A company needs to set a cost budget for EC2 usage and receive alerts when spending exceeds a threshold. The finance team wants to monitor costs and get notified of overspending.
- ✓
AWS Cost Explorer
Why this is correct
Correct. AWS Cost Explorer has a built-in tool that analyzes your historical EC2 (and other service) usage and provides recommendations for purchasing Reserved Instances and Savings Plans, including options with size flexibility to maximize savings.
- ✗
AWS Trusted Advisor
Why it's wrong here
Incorrect. AWS Trusted Advisor inspects your AWS environment and provides best practice recommendations in five categories, including cost optimization. Its cost checks identify idle or underutilized resources, but it does not provide the specific Reserved Instance or Savings Plans purchase recommendations that come from Cost Explorer.
When this WOULD be correct
A company wants a high-level review of their AWS account to identify cost optimization opportunities, security gaps, and performance improvements. The question would ask: 'Which AWS service provides best practice checks and recommendations across cost, performance, security, and fault tolerance?'
- ✗
AWS Pricing Calculator
Why it's wrong here
Incorrect. AWS Pricing Calculator is used to estimate the cost of running AWS services before you provision them. It does not have access to your historical usage data and therefore cannot generate purchase recommendations based on your past usage patterns.
When this WOULD be correct
A company is planning a new workload and needs to estimate the monthly cost of running EC2 instances with specific configurations, including different instance types and regions, before deployment.
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
Correct. AWS Cost Explorer has a built-in tool that analyzes your historical EC2 (and other service) usage and provides recommendations for purchasing Reserved Instances and Savings Plans, including options with size flexibility to maximize savings.
✗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 analyze historical EC2 usage or provide recommendations for Reserved Instances or Savings Plans.
★ When this WOULD be the correct answer
A company needs to set a cost budget for EC2 usage and receive alerts when spending exceeds a threshold. The finance team wants to monitor costs and get notified of overspending.
Why candidates choose this
Candidates may think AWS Budgets can provide cost-saving recommendations because it is a cost management tool, but its primary function is budgeting and alerts, not analysis and recommendations.
✗AWS Trusted AdvisorWrong answer — click to see why▾
Why this is wrong here
AWS Trusted Advisor provides general cost optimization checks and recommendations, but it does not offer detailed analysis of historical EC2 usage or specific recommendations for Reserved Instances and Savings Plans with instance size flexibility.
★ When this WOULD be the correct answer
A company wants a high-level review of their AWS account to identify cost optimization opportunities, security gaps, and performance improvements. The question would ask: 'Which AWS service provides best practice checks and recommendations across cost, performance, security, and fault tolerance?'
Why candidates choose this
Candidates may think Trusted Advisor is the go-to tool for cost recommendations because it includes cost optimization checks, but they overlook that it lacks the historical usage analysis and detailed purchase option recommendations that Cost Explorer provides.
✗AWS Pricing CalculatorWrong answer — click to see why▾
Why this is wrong here
AWS Pricing Calculator is used for estimating future costs based on user-defined inputs, not for analyzing historical usage or providing purchase recommendations.
★ When this WOULD be the correct answer
A company is planning a new workload and needs to estimate the monthly cost of running EC2 instances with specific configurations, including different instance types and regions, before deployment.
Why candidates choose this
Candidates may confuse the Pricing Calculator with a cost analysis tool because its name suggests it can provide cost-saving recommendations, but it lacks historical analysis and optimization features.
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?”
Go deeper
Related to this question
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.