SAP-C02 Q556 · Serverless

Question

A company is migrating its on-premises file transfer solution to AWS Transfer Family. The current system includes an SFTP server, a transformation application, and a messaging server. Transformations run every 5 minutes and notify the messaging server when complete. The company wants to simplify and reduce operational overhead.

Accepted Answer

Option C satisfies every requirement while minimizing operational overhead:

1. **SFTP Server → AWS Transfer Family with S3 backend**: AWS Transfer Family natively supports Amazon S3 as a storage backend. Files uploaded via SFTP land directly in S3 — no servers to manage.

2. **Transformation Application → AWS Glue triggered by S3 events**: Instead of polling every 5 minutes, S3 event notifications can trigger AWS Glue jobs immediately when files arrive. This is **event-driven** rather than time-based, which is both simpler and more responsive. AWS Glue is fully managed (serverless ETL), eliminating the need to manage compute infrastructure for transformations.

3. **Messaging Server → Amazon SQS**: After transformation completes, SQS provides a fully managed messaging queue to notify down

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