- A
AWS Cost Explorer
Why wrong: AWS Cost Explorer is used to analyze historical cost and usage data, not to estimate costs for a planned workload before deployment.
- B
AWS Budgets
Why wrong: AWS Budgets allows you to set custom budgets and receive alerts when costs exceed thresholds, but it does not provide cost estimation for new, unprovisioned resources.
- C
AWS Pricing Calculator
The AWS Pricing Calculator is the correct tool for estimating the cost of AWS services based on planned usage, including comparing pricing models like On-Demand and Reserved Instances before deployment.
- D
AWS Trusted Advisor
Why wrong: AWS Trusted Advisor inspects your existing AWS environment and provides recommendations to optimize cost, performance, and security, but it does not generate cost estimates for new, unprovisioned workloads.
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 startup is designing a new application on AWS. They have selected specific Amazon EC2 instance types, Amazon EBS volumes, and estimated data transfer. The team wants to compare the monthly cost of running the application using On-Demand instances versus 1-year All Upfront Reserved Instances before they commit to any resources. Which AWS tool should they use to generate this cost estimate?
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 Pricing Calculator
AWS Pricing Calculator (option C) is the correct tool because it allows users to estimate the monthly cost of AWS services, including EC2 instances, EBS volumes, and data transfer, before deployment. It supports comparing pricing models such as On-Demand and 1-year All Upfront Reserved Instances by letting you input specific instance types, storage, and transfer details to generate a detailed cost breakdown. This matches the startup's need to compare costs without committing to resources.
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 it's wrong here
AWS Cost Explorer is used to analyze historical cost and usage data, not to estimate costs for a planned workload before deployment.
- ✗
AWS Budgets
Why it's wrong here
AWS Budgets allows you to set custom budgets and receive alerts when costs exceed thresholds, but it does not provide cost estimation for new, unprovisioned resources.
- ✓
AWS Pricing Calculator
Why this is correct
The AWS Pricing Calculator is the correct tool for estimating the cost of AWS services based on planned usage, including comparing pricing models like On-Demand and Reserved Instances before deployment.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Trusted Advisor
Why it's wrong here
AWS Trusted Advisor inspects your existing AWS environment and provides recommendations to optimize cost, performance, and security, but it does not generate cost estimates for new, unprovisioned workloads.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Cost Explorer (which analyzes existing costs) with the AWS Pricing Calculator (which estimates future costs for new deployments), leading them to select Cost Explorer for a scenario that requires pre-deployment cost comparison.
Detailed technical explanation
How to think about this question
The AWS Pricing Calculator uses a service-specific configuration interface where you define EC2 instance families (e.g., t3.medium), EBS volume types (gp3, io1), and data transfer tiers (e.g., 1 TB outbound) to compute monthly estimates based on current AWS pricing, including Reserved Instance discounts. For 1-year All Upfront Reserved Instances, the calculator applies the upfront payment amortized over 12 months and shows the effective hourly rate, enabling direct comparison with On-Demand costs. This tool is essential for capacity planning and budget approval in greenfield projects, as it provides a detailed bill of materials before any resources are provisioned.
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?
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 Pricing Calculator — AWS Pricing Calculator (option C) is the correct tool because it allows users to estimate the monthly cost of AWS services, including EC2 instances, EBS volumes, and data transfer, before deployment. It supports comparing pricing models such as On-Demand and 1-year All Upfront Reserved Instances by letting you input specific instance types, storage, and transfer details to generate a detailed cost breakdown. This matches the startup's need to compare costs without committing to resources.
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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