AWS Serverless Microservices with Patterns and Best Practices - AWS Lambda Invocation Types - Introduction to the Course

The video tutorial covers AWS Lambda invocation types, including synchronous, asynchronous, and event source mapping with polling. It explains how each type functions, their use cases, and the services that can trigger them. Synchronous invocation involves immediate execution and response, while asynchronous invocation processes events without waiting for a response. Event source mapping uses polling to retrieve records from streams or queues. The tutorial also highlights the importance of setting the correct invocation type and handling errors effectively.

What are the three types of AWS Lambda invocation methods?

• Push, Pull, Event Source Mapping

• Immediate, Delayed, Event Source Mapping

• Direct, Indirect, Event Source Mapping

• Synchronous, Asynchronous, Event Source Mapping

Which invocation type waits for a response before proceeding?

• Batch Invocation

• Synchronous Invocation

• Asynchronous Invocation

• Event Source Mapping

In a synchronous invocation, which AWS service is commonly integrated with Lambda?

• Amazon SQS

• API Gateway

• Amazon SNS

• Amazon S3

What happens if a Lambda function fails during an asynchronous invocation?

• It is logged and ignored

• It is retried automatically

• It stops all further invocations

• It triggers an alert

Which AWS service can trigger a Lambda function asynchronously?

• Amazon EC2

• Amazon CloudFront

• Amazon S3

• Amazon RDS

What is the primary characteristic of event source mapping with polling invocation?

• It requires manual invocation

• It uses a push model

• It is only used for real-time data

• It retrieves records from streams or queues

Which AWS service is commonly used with event source mapping?

• Amazon CloudWatch

• Amazon S3

• Amazon RDS

• Amazon DynamoDB Streams

What is a key benefit of using event source mapping with polling?

• Batch processing

• Immediate execution

• Real-time data processing

• Manual control over execution

Which invocation type is best suited for real-time data processing?

• Synchronous Invocation

• Asynchronous Invocation

• Event Source Mapping

• Batch Invocation

What is the main focus of the next video in the series?

• Security best practices for AWS Lambda

• Cost optimization for serverless applications

• Advanced Lambda function configurations

• Mapping invocation types with a serverless application