Currently, you have a set of Lambda functions that have business logic embedded in them. You want customers to have the ability to call these functions via HTTPS. How could this be achieved?

Answer options:

A.Use the API Gateway and provide integration with the AWS Lambda functions.
B.Enable HTTP access on the AWS Lambda functions.
C.Add EC2 Instances with an API server installed. Integrate the server with AWS Lambda functions.
D.Use S3 websites to make calls to the Lambda functions

Correct Answer - A
An API Gateway provides the ideal access to your back end services via APIs.
For more information on the API Gateway service, please visit the following URL-
https://docs.aws.amazon.com/apigateway/latest/developerguide/welcome.html