- A
Use On-Demand Instances for all nodes.
Why wrong: On-Demand is more expensive.
- B
Right-size the cluster by analyzing resource utilization metrics.
Right-sizing prevents over-provisioning and reduces cost.
- C
Purchase Reserved Instances for the cluster.
Why wrong: Reserved Instances require commitment and are not ideal for variable workloads.
- D
Use Dedicated Instances to improve performance.
Why wrong: Dedicated Instances are more expensive and not necessary.
- E
Use Spot Instances for task nodes.
Spot Instances are cost-effective for fault-tolerant workloads.
Question 608 of 1,746
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. 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 wants to reduce costs for a batch processing workload that runs nightly on Amazon EMR. The workload is fault-tolerant and can handle interruptions. Which TWO strategies should they implement? (Choose TWO.)
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
✓
Right-size the cluster by analyzing resource utilization metrics.
Spot Instances are ideal for fault-tolerant, interruptible workloads like batch processing, significantly reducing costs (Option E). Right-sizing the cluster by analyzing resource utilization ensures that you are not over-provisioning, which directly lowers costs (Option B). On-Demand Instances (A) are more expensive and unnecessary given fault tolerance. Reserved Instances (C) are for steady-state workloads, not nightly batch jobs. Dedicated Instances (D) add cost and do not improve performance for this use case.
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.
- ✗
Use On-Demand Instances for all nodes.
Why it's wrong here
On-Demand is more expensive.
- ✓
Right-size the cluster by analyzing resource utilization metrics.
Why this is correct
Right-sizing prevents over-provisioning and reduces cost.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Purchase Reserved Instances for the cluster.
Why it's wrong here
Reserved Instances require commitment and are not ideal for variable workloads.
- ✗
Use Dedicated Instances to improve performance.
Why it's wrong here
Dedicated Instances are more expensive and not necessary.
- ✓
Use Spot Instances for task nodes.
Why this is correct
Spot Instances are cost-effective for fault-tolerant workloads.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Continuous Improvement for Existing Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Right-size the cluster by analyzing resource utilization metrics. — Spot Instances are ideal for fault-tolerant, interruptible workloads like batch processing, significantly reducing costs (Option E). Right-sizing the cluster by analyzing resource utilization ensures that you are not over-provisioning, which directly lowers costs (Option B). On-Demand Instances (A) are more expensive and unnecessary given fault tolerance. Reserved Instances (C) are for steady-state workloads, not nightly batch jobs. Dedicated Instances (D) add cost and do not improve performance for this use case.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 20, 2026
This SAP-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 SAP-C02 exam.
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