The answer is the AWS TCO Calculator. This tool is correct because it is specifically designed to compare the full cost of running on-premises infrastructure—including hardware, facilities, power, and labor—against the equivalent costs on AWS, generating a detailed side-by-side report that quantifies potential savings. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of cost comparison tools, often appearing as a scenario where a director needs to build a business case for migration; a common trap is confusing it with the AWS Pricing Calculator, which estimates future AWS costs alone but does not factor in on-premises expenses. To remember the difference, think of the TCO Calculator as the "before and after" tool—it compares your current on-premises total cost of ownership to the AWS alternative—while the Pricing Calculator only shows the "after" picture. A simple memory tip: TCO stands for Total Cost of Ownership, meaning it captures everything you own on-premises for a true comparison.
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 company's IT director wants to present a business case for migrating from on-premises infrastructure to AWS. They need to compare the full cost of running on-premises (hardware, facilities, power, labour) against the cost of running equivalent workloads on AWS. Which AWS tool helps create this comparison?
Why wrong: The Pricing Calculator estimates AWS cloud costs for a proposed architecture. It does not model on-premises costs or create a side-by-side TCO comparison between on-premises and cloud.
B
AWS Cost Explorer
Why wrong: Cost Explorer analyses historical AWS spending. It does not compare on-premises infrastructure costs to cloud costs.
C
AWS TCO Calculator
The AWS TCO Calculator is designed specifically for comparing on-premises infrastructure total cost of ownership with equivalent AWS costs. It accounts for hardware, software licenses, facilities, networking, and labour costs.
D
AWS Budgets
Why wrong: Budgets sets cost alerts for current AWS spending. It does not perform on-premises versus cloud cost comparison analyses.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS TCO Calculator
Option C is correct because the AWS TCO (Total Cost of Ownership) Calculator is specifically designed to compare the full costs of running on-premises infrastructure (including hardware, facilities, power, and labor) against the equivalent costs on AWS. It generates a detailed side-by-side cost comparison report, helping IT directors build a business case for migration by quantifying potential savings.
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 Pricing Calculator
Why it's wrong here
The Pricing Calculator estimates AWS cloud costs for a proposed architecture. It does not model on-premises costs or create a side-by-side TCO comparison between on-premises and cloud.
✗
AWS Cost Explorer
Why it's wrong here
Cost Explorer analyses historical AWS spending. It does not compare on-premises infrastructure costs to cloud costs.
✓
AWS TCO Calculator
Why this is correct
The AWS TCO Calculator is designed specifically for comparing on-premises infrastructure total cost of ownership with equivalent AWS costs. It accounts for hardware, software licenses, facilities, networking, and labour costs.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Budgets
Why it's wrong here
Budgets sets cost alerts for current AWS spending. It does not perform on-premises versus cloud cost comparison analyses.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the AWS Pricing Calculator (which only estimates AWS service costs) with the TCO Calculator (which compares on-premises vs. AWS total costs), leading them to select Option A instead of C.
Detailed technical explanation
How to think about this question
The AWS TCO Calculator uses a detailed questionnaire to capture on-premises server, storage, network, and labor specifications, then applies AWS pricing models (e.g., Reserved Instances, Savings Plans) and assumes typical utilization rates (often 30-40% for on-premises) to project AWS costs. It also factors in data center electricity costs (e.g., $0.10/kWh) and IT labor rates, producing a PDF report that highlights cost breakdowns by category. A real-world scenario: a company with 500 physical servers running at 20% utilization might see a 40-60% cost reduction on AWS due to higher utilization and elimination of facility overhead.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CLF-C02 question in full detail.
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 TCO Calculator — Option C is correct because the AWS TCO (Total Cost of Ownership) Calculator is specifically designed to compare the full costs of running on-premises infrastructure (including hardware, facilities, power, and labor) against the equivalent costs on AWS. It generates a detailed side-by-side cost comparison report, helping IT directors build a business case for migration by quantifying potential savings.
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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Variation 1. A company is planning to migrate its on-premises data center to AWS. The Chief Financial Officer wants to compare the total cost of ownership (TCO) of the current on-premises infrastructure against running equivalent workloads on AWS. The company needs a tool that allows them to input details about their existing servers, storage, and network usage to generate a detailed cost comparison report. Which AWS tool should the company use to meet this requirement?
medium
A.AWS Pricing Calculator
✓ B.AWS Total Cost of Ownership (TCO) Calculator
C.AWS Budgets
D.AWS Cost Explorer
Why B: The AWS Total Cost of Ownership (TCO) Calculator is specifically designed to compare the costs of on-premises infrastructure with AWS by allowing users to input details about their existing servers, storage, and network usage. It generates a detailed report that highlights potential savings from migrating to AWS, directly addressing the CFO's requirement for a cost comparison.
Variation 2. A company currently runs its infrastructure in a colocation data center. The CIO wants to estimate the total cost of ownership (TCO) of migrating the existing workload to AWS, compared to continuing with the on-premises solution. The company has detailed data on current server specifications, power, cooling, and labor costs. Which AWS tool should the company use to perform this analysis?
easy
A.AWS Pricing Calculator
✓ B.AWS Total Cost of Ownership (TCO) Calculator
C.AWS Cost Explorer
D.AWS Budgets
Why B: The AWS Total Cost of Ownership (TCO) Calculator is specifically designed to compare the costs of running infrastructure on-premises versus on AWS. It allows you to input detailed data on server specifications, power, cooling, and labor costs to generate a side-by-side TCO comparison, which directly meets the CIO's requirement.
Variation 3. A company is evaluating a migration of its on-premises data center to AWS. The CIO wants a detailed report that compares the total cost of ownership (TCO) of the current on-premises infrastructure versus running the equivalent workloads on AWS. The report should include costs for hardware, software, labor, power, cooling, and facilities. Which AWS tool should the company use to generate this comparison?
medium
A.AWS Pricing Calculator
✓ B.AWS Total Cost of Ownership (TCO) Calculator
C.AWS Cost Explorer
D.AWS Trusted Advisor
Why B: The AWS Total Cost of Ownership (TCO) Calculator is specifically designed to compare the costs of on-premises infrastructure with AWS, including hardware, software, labor, power, cooling, and facilities. It generates a detailed report that breaks down these cost categories, making it the correct tool for the CIO's requirement.
Variation 4. A company is planning to migrate its on-premises data center to AWS. The finance team needs to compare the current on-premises infrastructure costs (including servers, storage, networking, and personnel) against the projected costs of running identical workloads on AWS over a three-year period. The team wants to input detailed specifications of their existing hardware and get a comprehensive report that highlights potential savings and provides a total cost of ownership (TCO) comparison. Which AWS tool should the finance team use?
medium
A.AWS Pricing Calculator
B.AWS Cost Explorer
✓ C.AWS Total Cost of Ownership (TCO) Calculator
D.AWS Simple Monthly Calculator
Why C: The AWS Total Cost of Ownership (TCO) Calculator is specifically designed to compare the costs of on-premises infrastructure with AWS, allowing users to input detailed hardware specifications (servers, storage, networking) and generate a comprehensive report that highlights potential savings over a chosen period (e.g., three years). This tool directly addresses the finance team's need for a TCO comparison, including personnel costs, which is not a feature of other AWS calculators.
Last reviewed: Jun 11, 2026
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