Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A media processing pipeline runs batch jobs overnight. The jobs are stateless, can be restarted from checkpoints, and can tolerate interruptions. The team wants to minimize compute cost. Which EC2 approach is the best fit?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Use On-Demand instances to guarantee uninterrupted capacity.
On-Demand is reliable but usually more expensive than alternatives. The scenario explicitly allows interruptions and restart from checkpoints, so the “uninterrupted capacity” advantage is not required and would increase cost without providing a benefit.
B
Best answer
Use Spot Instances and design the jobs to handle interruptions by checkpointing and retrying.
Spot is the most cost-effective EC2 option when the workload can handle interruption. Because the jobs are stateless and can resume from checkpoints, losing an instance due to a Spot interruption does not lose progress. The design aligns directly with Spot’s best-effort interruption model, minimizing compute cost while still completing the batch work.
C
Distractor review
Use a 1-year Reserved Instance for the current instance type and lock the fleet to it.
Reserved Instances provide predictable savings for steady, predictable usage, but the scenario’s cost optimization lever is interruption tolerance rather than commitment. Spot pricing typically offers greater savings than RI for interruption-tolerant batch workloads. Also, “locking the fleet” reduces flexibility and is unnecessary given that the workload can simply restart after interruptions.
D
Distractor review
Use Savings Plans but still treat interruptions as failures that require manual intervention.
Savings Plans reduce cost for committed usage but do not inherently provide interruption-tolerant behavior. The scenario requires treating interruptions as acceptable (resume from checkpoints), so a design that treats interruptions as failures contradicts the stated tolerance and would reduce the practical value of any purchase option choice.
Common exam trap
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.
Technical deep dive
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.
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Use Spot Instances and design the jobs to handle interruptions by checkpointing and retrying. — Spot Instances are designed for workloads that tolerate interruptions at a reduced price. In this scenario, jobs are stateless and restartable from checkpoints, so interruptions do not prevent completion of the batch processing window. Therefore, using Spot with checkpoint/retry logic best minimizes compute cost. On-Demand, Reserved Instances, and Savings Plans prioritize different optimization goals (reliability or steady committed usage) and do not leverage interruption tolerance as effectively in this case. A is unnecessary because interruptions are tolerated. C is a mismatch because the scenario’s main cost lever is interruption-tolerant design, not committing to a fixed capacity shape. D is wrong because it intentionally contradicts the requirement to tolerate interruptions (manual intervention on interruptions undermines the interruption-tolerant model).
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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