- A
Standard Reserved Instances
Why wrong: Standard Reserved Instances are region-specific and do not allow changes to instance family, OS, or tenancy.
- B
Convertible Reserved Instances
Convertible Reserved Instances allow changes to instance family, OS, and tenancy, and can be exchanged across AWS Regions.
- C
Scheduled Reserved Instances
Why wrong: Scheduled Reserved Instances are for specific time windows and do not offer the flexibility described.
- D
Compute Savings Plans
Why wrong: Compute Savings Plans offer flexibility in instance family, OS, and tenancy, but are region-specific and do not allow cross-Region flexibility.
Question 858 of 1,024
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 is considering Reserved Instances to reduce costs. Which type of Reserved Instance provides the flexibility to change the instance family, OS, and tenancy, and can be used across any Region?
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
✓
Convertible Reserved Instances
Convertible Reserved Instances (RIs) allow you to change the instance family, OS, and tenancy during the term, and they can be exchanged across AWS Regions. This flexibility makes them ideal for evolving workloads, though they offer a lower discount (typically 10-20% less) compared to Standard RIs. The question specifically asks for the ability to change instance family, OS, tenancy, and use across any Region, which is a direct match to Convertible RIs.
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.
- ✗
Standard Reserved Instances
Why it's wrong here
Standard Reserved Instances are region-specific and do not allow changes to instance family, OS, or tenancy.
- ✓
Convertible Reserved Instances
Why this is correct
Convertible Reserved Instances allow changes to instance family, OS, and tenancy, and can be exchanged across AWS Regions.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Scheduled Reserved Instances
Why it's wrong here
Scheduled Reserved Instances are for specific time windows and do not offer the flexibility described.
- ✗
Compute Savings Plans
Why it's wrong here
Compute Savings Plans offer flexibility in instance family, OS, and tenancy, but are region-specific and do not allow cross-Region flexibility.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Compute Savings Plans (which offer flexibility in instance family, OS, and tenancy but are Region-locked) with Convertible RIs (which additionally allow Region changes), leading them to select Compute Savings Plans when the question explicitly requires cross-Region flexibility.
Detailed technical explanation
How to think about this question
Convertible RIs can be exchanged for another Convertible RI with different attributes (e.g., from m5.large to c5.xlarge) or even a different Region, but the exchange must result in equal or greater value, and any difference in cost is settled as a fee or credit. Under the hood, AWS tracks the normalized unit hours (e.g., per vCPU and memory) to ensure the exchange maintains equivalent compute capacity. In a real-world scenario, a company migrating from Linux to Windows or moving workloads from US East to EU West could use Convertible RIs to adapt without losing the reservation benefit.
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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Billing, Pricing, and Support — study guide chapter
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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: Convertible Reserved Instances — Convertible Reserved Instances (RIs) allow you to change the instance family, OS, and tenancy during the term, and they can be exchanged across AWS Regions. This flexibility makes them ideal for evolving workloads, though they offer a lower discount (typically 10-20% less) compared to Standard RIs. The question specifically asks for the ability to change instance family, OS, tenancy, and use across any Region, which is a direct match to Convertible RIs.
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
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