- A
High availability
Why wrong: High availability is a characteristic that ensures systems remain operational and accessible despite failures. This scenario focuses on the financial model, not system uptime.
- B
Resource elasticity
Why wrong: Resource elasticity refers to the ability to automatically scale compute capacity up or down based on demand. While important, it is not the benefit that directly addresses the change from upfront purchases to monthly payments.
- C
Security compliance
Why wrong: Security compliance involves adhering to regulatory standards (e.g., HIPAA, GDPR). The CFO's observation is about cost structure, not security or compliance requirements.
- D
Shifting capital expense to variable operational expense
Correct. AWS's pay-as-you-go pricing model eliminates the need for large upfront hardware purchases. Instead, costs become variable operational expenses based on actual usage, which is the key financial advantage illustrated in this migration scenario.
CLF-C02 Cloud Concepts Practice Question
This CLF-C02 practice question tests your understanding of cloud concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 operates its own data center with physical servers that are purchased outright every three years. The company is migrating its entire infrastructure to AWS. The CFO notes that the company will no longer need to make large upfront purchases of hardware and instead will pay monthly for the compute and storage resources used. Which cloud computing benefit does this scenario best illustrate?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Shifting capital expense to variable operational expense
This scenario illustrates the shift from capital expenditure (CapEx) to variable operational expenditure (OpEx). In the on-premises model, the company makes large upfront purchases of physical servers every three years, which is a capital expense. By migrating to AWS, the company pays only for the compute and storage resources it consumes on a monthly basis, converting that fixed, upfront cost into a variable operating cost that scales with usage.
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.
- ✗
High availability
Why it's wrong here
High availability is a characteristic that ensures systems remain operational and accessible despite failures. This scenario focuses on the financial model, not system uptime.
- ✗
Resource elasticity
Why it's wrong here
Resource elasticity refers to the ability to automatically scale compute capacity up or down based on demand. While important, it is not the benefit that directly addresses the change from upfront purchases to monthly payments.
- ✗
Security compliance
Why it's wrong here
Security compliance involves adhering to regulatory standards (e.g., HIPAA, GDPR). The CFO's observation is about cost structure, not security or compliance requirements.
- ✓
Shifting capital expense to variable operational expense
Why this is correct
Correct. AWS's pay-as-you-go pricing model eliminates the need for large upfront hardware purchases. Instead, costs become variable operational expenses based on actual usage, which is the key financial advantage illustrated in this migration scenario.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the financial benefit of shifting from CapEx to OpEx with the operational benefit of resource elasticity, but the question specifically focuses on the change in how costs are incurred (upfront vs. monthly usage-based).
Trap categories for this question
Scenario analysis trap
High availability is a characteristic that ensures systems remain operational and accessible despite failures. This scenario focuses on the financial model, not system uptime.
Detailed technical explanation
How to think about this question
Under the hood, AWS bills customers based on metered usage of services like EC2 (per second or per hour) and S3 (per GB stored), enabling a pay-as-you-go model. This contrasts with on-premises data centers where hardware depreciation is calculated over a fixed lifespan (e.g., three years) regardless of actual utilization. In real-world scenarios, this CapEx-to-OpEx shift improves cash flow and allows companies to redirect capital toward innovation rather than sunk hardware costs.
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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Cloud Concepts — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Concepts — This question tests Cloud Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Shifting capital expense to variable operational expense — This scenario illustrates the shift from capital expenditure (CapEx) to variable operational expenditure (OpEx). In the on-premises model, the company makes large upfront purchases of physical servers every three years, which is a capital expense. By migrating to AWS, the company pays only for the compute and storage resources it consumes on a monthly basis, converting that fixed, upfront cost into a variable operating cost that scales with usage.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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