- A
The remaining 4 instances are free since the Savings Plan covers all usage
Why wrong: Savings Plans discount usage up to the committed amount — they don't provide free usage beyond the commitment.
- B
The remaining 4 instances are charged at On-Demand rates
Savings Plans apply the discount to eligible usage up to the hourly commitment. Usage exceeding the commitment is charged at On-Demand rates — the Savings Plan doesn't cover it.
- C
The remaining 4 instances are charged at Spot Instance rates
Why wrong: Savings Plans don't convert excess usage to Spot pricing — unplanned excess is charged at On-Demand rates.
- D
AWS suspends the 4 excess instances to enforce the Savings Plan limit
Why wrong: AWS never suspends instances due to Savings Plan limits — excess usage above the commitment is simply charged at On-Demand rates.
CLF-C02 Billing, Pricing, and Support Practice Question
This CLF-C02 practice question tests your understanding of billing, pricing, and support. 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 has 10 EC2 On-Demand instances running. They purchase a 1-year Compute Savings Plan for a commitment equivalent to 6 instances. What happens to the remaining 4 instances' cost?
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
The remaining 4 instances are charged at On-Demand rates
A Compute Savings Plan applies to any EC2 instance usage up to the committed hourly amount (in this case, equivalent to 6 instances). Usage beyond that commitment is charged at standard On-Demand rates. Therefore, the remaining 4 instances are billed at On-Demand prices because the Savings Plan does not cover usage exceeding the commitment.
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.
- ✗
The remaining 4 instances are free since the Savings Plan covers all usage
Why it's wrong here
Savings Plans discount usage up to the committed amount — they don't provide free usage beyond the commitment.
- ✓
The remaining 4 instances are charged at On-Demand rates
Why this is correct
Savings Plans apply the discount to eligible usage up to the hourly commitment. Usage exceeding the commitment is charged at On-Demand rates — the Savings Plan doesn't cover it.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The remaining 4 instances are charged at Spot Instance rates
Why it's wrong here
Savings Plans don't convert excess usage to Spot pricing — unplanned excess is charged at On-Demand rates.
- ✗
AWS suspends the 4 excess instances to enforce the Savings Plan limit
Why it's wrong here
AWS never suspends instances due to Savings Plan limits — excess usage above the commitment is simply charged at On-Demand rates.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a Savings Plan covers all usage or that AWS will automatically adjust pricing or terminate instances to enforce the plan, when in reality AWS simply bills excess usage at On-Demand rates without any service disruption.
Detailed technical explanation
How to think about this question
A Compute Savings Plan provides a flexible discount (e.g., up to 66% for 1-year) that applies to any EC2 instance family, size, or region, but only up to the hourly commitment (e.g., $0.50/hour). Usage above that commitment is metered and billed at the full On-Demand rate. In a real-world scenario, if a company's workload spikes, the Savings Plan acts as a baseline discount, and the excess is charged normally, allowing burst capacity without interruption.
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.
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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: The remaining 4 instances are charged at On-Demand rates — A Compute Savings Plan applies to any EC2 instance usage up to the committed hourly amount (in this case, equivalent to 6 instances). Usage beyond that commitment is charged at standard On-Demand rates. Therefore, the remaining 4 instances are billed at On-Demand prices because the Savings Plan does not cover usage exceeding the commitment.
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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