Which service can be used to connect applications with data streams and events across AWS via a serverless messaging pattern?

• A. Amazon MQ
• B. Amazon Simple Queue Service (SQS)
• C. Amazon EventBridge
• D. Amazon AppFlow

Answer: (C)

The main idea here is connecting applications through a serverless event bus that routes events and data streams across AWS to multiple targets in real time. Amazon EventBridge fits this pattern because it provides a fully managed, serverless event bus that can ingest events from AWS services, custom applications, and SaaS apps, and route them to multiple targets (like Lambda, Step Functions, or SQS) based on rules you define. This enables decoupled, event-driven architectures where producers and consumers don’t need to know about each other, and the service scales automatically with demand.

Amazon MQ is a managed broker for traditional messaging protocols, which involves managing brokers and is not serverless. SQS is a queueing service suitable for decoupling components with pull-based message consumption, not the cross-service event routing pattern. AppFlow focuses on data transfer between SaaS apps and AWS services, not on real-time event streaming across AWS. EventBridge is the best choice for connecting applications with data streams and events in a serverless way.