AWS Serverless Microservices with Patterns and Best Practices - AWS Lambda Invocation Types - Developing Our First Lambd

The video tutorial explains AWS Lambda invocation types: synchronous, asynchronous, and event source mapping with polling. It covers how each type functions, their use cases, and integration with AWS services like API Gateway, DynamoDB, S3, SNS, and SQS. The tutorial emphasizes the importance of understanding these invocation types for developing serverless applications.

What are the three types of AWS Lambda invocation methods?

• Push, Pull, Hybrid

• Direct, Indirect, Event-Driven

• Synchronous, Asynchronous, Event Source Mapping

• Manual, Automatic, Scheduled

Which invocation type waits for a response before proceeding?

• Batch Invocation

• Event Source Mapping

• Synchronous Invocation

• Asynchronous Invocation

In a synchronous invocation, which AWS service is commonly used for API integration?

• Amazon RDS

• API Gateway

• Amazon SNS

• Amazon S3

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

• It is retried automatically

• It is logged and ignored

• It sends an alert to the user

• It stops all further invocations

Which AWS service is NOT typically associated with asynchronous invocation?

• Amazon SES

• Amazon SNS

• Amazon RDS

• Amazon S3

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

• It requires manual invocation by the user

• It is used for real-time data processing

• It triggers functions based on HTTP requests

• It pulls events from data streams or queues

Which AWS service is commonly used with event source mapping for stream processing?

• Amazon RDS

• Amazon EC2

• Amazon Kinesis

• Amazon S3

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

• Immediate execution of functions

• Automatic scaling of resources

• Batch processing of multiple items

• Direct integration with API Gateway

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

• Manual Invocation

• Asynchronous Invocation

• Synchronous Invocation

• Event Source Mapping

What should be attached to a Lambda function to handle unprocessed events in asynchronous invocation?

• A CloudWatch Alarm

• A Dead Letter Queue

• A DynamoDB Table

• An API Gateway