A company is redesigning a monolithic application to improve reliability. The application currently processes user uploads synchronously, often timing out. The architect wants to decouple the architecture. Which THREE services can be used together to build a loosely coupled, asynchronous processing pipeline? (Select THREE)

Answer options:

Amazon S3

Amazon ElastiCache

Amazon SQS

AWS Direct Connect

AWS Lambda

Amazon API Gateway

AWS CloudTrail

How to approach this question

Identify the storage, queueing, and compute components of an event-driven architecture.

Full Answer

A, C, E

A standard decoupled pattern: Users upload files to Amazon S3. S3 sends an event to an Amazon SQS queue. AWS Lambda consumes messages from the queue and processes the files asynchronously.

Common mistakes

Selecting API Gateway, which is typically synchronous.

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