The correct answer combines Amazon S3 Event Notifications, AWS Batch, and Spot Instances. S3 Event Notifications automatically trigger the batch job when a new large file lands in the bucket, eliminating idle polling. AWS Batch then orchestrates the CPU-intensive processing, efficiently managing job queues and scaling compute resources, while Spot Instances slash costs by using spare EC2 capacity for workloads that can tolerate interruptions—ideal for batch jobs that can run up to two hours. On the SAP-C02 exam, this scenario tests your ability to design cost-optimized, event-driven architectures; a common trap is choosing Lambda (which has a 15-minute execution limit) or Auto Scaling groups (which lack native job scheduling). Remember the mnemonic “BESTS” for Batch, Events, Spot—the three pillars for cheap, scalable file processing from S3.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. 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 designing a new batch processing system that processes large files from Amazon S3. The processing is CPU-intensive and can take up to 2 hours per file. The company wants to minimize cost and avoid idle compute capacity. Which THREE components should the architect include? (Choose THREE.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
EC2 Spot Instances to reduce compute costs.
AWS Batch (option A) manages job scheduling and scaling. Spot Instances (option C) reduce cost. S3 Event Notifications (option D) trigger jobs when files arrive. Option B (Auto Scaling) is less efficient. Option E (Lambda) has a 15-minute limit.
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.
✓
EC2 Spot Instances to reduce compute costs.
Why this is correct
Spot Instances are cost-effective for fault-tolerant batch jobs.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Lambda functions to process each file.
Why it's wrong here
Lambda has a maximum execution time of 15 minutes.
✓
AWS Batch with a job queue and compute environment.
Why this is correct
AWS Batch is designed for batch processing and manages resources.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon S3 Event Notifications to trigger the batch job when a new file is uploaded.
Why this is correct
Event-driven triggering automates the pipeline.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Auto Scaling group with scheduled scaling policies.
Why it's wrong here
Not as efficient as AWS Batch for job-driven scaling.
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.
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: EC2 Spot Instances to reduce compute costs. — AWS Batch (option A) manages job scheduling and scaling. Spot Instances (option C) reduce cost. S3 Event Notifications (option D) trigger jobs when files arrive. Option B (Auto Scaling) is less efficient. Option E (Lambda) has a 15-minute limit.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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