Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 86 discussion

The developer can test a specific Lambda function locally by running the cdk synth command to synthesize the AWS CDK application into an AWS CloudFormation template. Then, the developer can use the sam local invoke command with the function construct identifier and the path to the synthesized CloudFormation template to test the Lambda function locally (option C).

o test a specific Lambda function locally when using the AWS Cloud Development Kit (AWS CDK), the developer can use the AWS Serverless Application Model (AWS SAM) CLI's local testing capabilities in conjunction with the CDK. The typical process would be: Run cdk synth to synthesize the AWS CDK app into a CloudFormation template. Use sam local invoke to run the specific Lambda function locally, providing the function's logical identifier and the path to the synthesized CloudFormation template as arguments.

Note that the sam local start-lambda subcommand starts a local endpoint to emulate AWS Lambda.

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-cdk-testing.html

C is the correct answer.

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-using-invoke.html sam local invoke: Invoke Lambda locally sam local start-lambda: Integrating with automated-tests

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-cdk-testing.html C

Use the AWS SAM CLI sam local invoke subcommand to initiate a one-time invocation of an AWS Lambda function locally. https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/using-sam-cli-local-invoke.html

Answer is clearly C. If you say it's not C, you are wrong.

sam local invoke StackLogicalId/FunctionLogicalId https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/using-sam-cli-local-invoke.html