SAP-C02 Q553 · Serverless

Question

How should a company efficiently process infrequently uploaded S3 data using a long-running (up to 25 minutes) custom application?

Accepted Answer

**Option A: ECS on Fargate triggered by EventBridge** satisfies every requirement:

1. **Long-running processing (up to 25 minutes):** ECS tasks on Fargate have no 15-minute timeout limitation. A Fargate task can run for hours if needed, easily handling the 25-minute requirement.

2. **Custom application:** ECS runs Docker containers, so the company can package their custom application as a container image with full control over runtime, dependencies, and configuration.

3. **Infrequently uploaded data:** Fargate is **serverless** — you pay only when tasks run. There are no idle EC2 instances consuming cost when no files are uploaded. This is ideal for sporadic workloads.

4. **Event-driven trigger:** When an object is uploaded to S3, an event is sent to Amazon EventBridge. An EventBridge

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