SAA-C03 Q645 · Cost

Question

A company needs to run a critical data processing workload that uses a Python script every night. The workload takes 1 hour to finish. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

**Option A: ECS Fargate with Spot capacity provider** meets all requirements most cost-effectively:

1. **Handles 1-hour runtime**: Fargate tasks have no strict timeout limit like Lambda (which caps at 15 minutes). A 1-hour workload runs comfortably on Fargate.

2. **Fargate Spot saves up to 70%**: Fargate Spot uses spare AWS capacity at significantly reduced prices compared to regular Fargate pricing. This is the key cost optimization.

3. **No infrastructure management**: Fargate is serverless for containers — no EC2 instances to provision, patch, or manage. You only pay for the time the task runs (1 hour per night).

4. **Scheduling capability**: ECS Scheduled Tasks (via Amazon EventBridge) can trigger the task once every night on a cron schedule.

5. **Critical workload concern**: Whil

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