AWS EventBridge: Key Interview Questions You Should Know

Here are the top 10 AWS EventBridge interview questions along with their answers:

1. Q: What is AWS EventBridge? A: AWS EventBridge is a serverless event bus service that simplifies the integration of applications and services by enabling event-driven architectures. It allows you to build loosely coupled, scalable, and decoupled applications using event-driven programming.

2. Q: How does AWS EventBridge differ from AWS Simple Notification Service (SNS)? A: While both services provide event-based messaging, AWS EventBridge is more focused on event routing and processing, enabling you to build complex event-driven architectures. AWS SNS, on the other hand, is primarily used for pub/sub messaging between distributed systems.

3. Q: How can you integrate AWS services with AWS EventBridge? A: AWS EventBridge can integrate with various AWS services, such as AWS Lambda, AWS Step Functions, Amazon S3, AWS CloudWatch, and more. You can use these services to process events, trigger workflows, store data, and perform other actions based on the events received.

4. Q: Can you explain the concept of an "Event" in EventBridge? A: An event in AWS EventBridge represents a change or a state update in a system or application. It contains information about the event source, the event payload, and other relevant metadata. Events can be generated by AWS services, third-party applications, or custom code.

5. Q: What are the different ways to send events to AWS EventBridge? A: Events can be sent to AWS EventBridge using various methods, including direct API calls, SDKs (such as AWS SDKs), AWS Command Line Interface (CLI), or by integrating AWS services that generate events natively.

6. Q: How can you filter events in AWS EventBridge? A: AWS EventBridge provides filtering rules that allow you to specify event patterns using JSON syntax. These rules match against incoming events and determine which targets should receive the events based on the defined criteria, such as event source, event type, or event content.

7. Q: Can you explain the concept of an "Event Bus" in EventBridge? A: An event bus is a logical entity within AWS EventBridge that receives and distributes events. You can create multiple event buses to isolate event flows based on different criteria, such as application domains, teams, or environments.

8. Q: How does AWS EventBridge handle event delivery to targets? A: AWS EventBridge supports various targets, including AWS Lambda functions, AWS Step Functions, Amazon SNS topics, Amazon SQS queues, and more. When an event matches a rule, EventBridge delivers the event to the specified targets asynchronously.

9. Q: How can you monitor and troubleshoot AWS EventBridge? A: AWS CloudWatch provides monitoring capabilities for AWS EventBridge. You can monitor event delivery, create alarms based on event patterns, and analyze metrics and logs. Additionally, you can enable CloudTrail to track API calls and changes to EventBridge resources for auditing and troubleshooting purposes.

10. Q: Can you explain the concept of an "Event Schema" in AWS EventBridge? A: EventBridge allows you to define and enforce event schemas using the Amazon EventBridge Schema Registry. Event schemas provide a structured format for events, enabling better interoperability and easier integration between event producers and consumers.

Remember to personalize your answers based on your experience and understanding of AWS EventBridge. These questions and answers should serve as a starting point for your interview preparation. Good luck!