AWS Serverless Microservices with Patterns and Best Practices - AWS Lambda Best Practices and Event-Driven Architecture

The video tutorial covers AWS Lambda and its role in event-driven architectures, focusing on design principles and best practices for developing serverless applications. It explains Lambda's functionality, invocation types, and the importance of event JSON objects. The tutorial also discusses event generation, use cases, and the integration of AWS services like SQS and API Gateway. Key concepts include synchronous and asynchronous communication, event source mapping, and microservice architecture.

What is the primary role of AWS Lambda in event-driven architectures?

• To store data

• To handle events

• To manage user authentication

• To provide network security

How are events represented in AWS Lambda?

• As JSON objects

• As plain text

• As XML files

• As CSV files

What is a key characteristic of events in event-driven architectures?

• They are immutable

• They are synchronous

• They are mutable

• They are always generated by users

Which AWS service can trigger a Lambda function by polling queue records?

• Amazon RDS

• Amazon SQS

• Amazon EC2

• Amazon S3

What is a characteristic of loosely coupled services in event-driven architectures?

• They are tightly integrated

• The publisher knows all consumers

• The publisher is unaware of the consumers

• They communicate synchronously

Which AWS service is commonly used for API management in Lambda-based applications?

• Amazon S3

• Amazon API Gateway

• Amazon RDS

• Amazon EC2

What is the purpose of using infrastructure as code in AWS?

• To enhance network security

• To increase storage capacity

• To automate resource creation and destruction

• To manually configure servers

Which communication type involves the client waiting for a response after making a request?

• Asynchronous communication

• Synchronous communication

• Batch processing

• Event source mapping

In which communication type does the client not receive the result of the request immediately?

• Asynchronous communication

• Real-time communication

• Direct communication

• Synchronous communication

What is the role of AWS SQS in event source mapping?

• To store large files

• To manage user sessions

• To decouple microservices

• To provide real-time analytics