Your development team is developing several lambda functions for testing. An external .Net program will call these functions. The program needs to call each lambda function version for testing purposes. How can you accomplish this in the easiest way to ensure the least changes need to be made to the .Net program?

Answer options:

A.Create different environment variables for the Lambda function.
B.Create different versions for the Lambda function.
C.Create one or more ALIAS and reference it in the program.
D.Use the SAM for deployment of the functions.

Answer – C
The AWS Documentation mentions the following.
You can create one or more aliases for your Lambda function. An AWS Lambda alias is like a pointer to a specific Lambda function version.
By using aliases, you can access the Lambda function. An alias is pointing to (for example, to invoke the function) without the caller having to know the specific version the alias is pointing to.
Option A is invalid since environment variables in AWS Lambda are used to dynamically pass settings to your function code and libraries without making changes to the Lambda code.
Option B is invalid since this is used to publish one or more versions of your Lambda function.
Option D is invalid since this is used to define serverless applications.
For more information on ALIAS, please refer to the below URL-
https://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html