AWS Certified Developer - Associate
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During the development of a mobile app that interfaces with a backend service via Amazon API Gateway REST API, a developer seeks a method to simulate backend responses for integration testing without actual service invocation. What is the most operationally efficient approach?
A
Implement an AWS Lambda function with API Gateway proxy integration to generate static HTTP responses.
B
Deploy an Amazon EC2 instance configured as a backend REST API through an AWS CloudFormation template.
C
Modify the API Gateway stage settings to dynamically choose response types from incoming requests.
D
Employ a request mapping template in API Gateway to define mock integration responses.