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DVA-C02 · Question #797

A company needs to rapidly prototype a web application. However, the company has not yet designed the complete architecture. A developer uses AWS Lambda functions to build three endpoints. A frontend

The correct answer is A. Set up a Lambda function URL for each endpoint. Use the function URLs for testing.. Lambda function URLs provide a built-in HTTPS endpoint for invoking a Lambda function directly, without needing to provision or manage API Gateway, AppSync, or any additional infrastructure. This enables quick endpoint exposure for frontend testing with minimal setup and operatio

Submitted by carlos_mx· Mar 5, 2026Development with AWS Services

Question

A company needs to rapidly prototype a web application. However, the company has not yet designed the complete architecture. A developer uses AWS Lambda functions to build three endpoints. A frontend team wants to test the endpoints while the team prototypes the frontend. Which solution will meet these requirements with the LEAST operational overhead?

Options

  • ASet up a Lambda function URL for each endpoint. Use the function URLs for testing.
  • BSet up an Amazon API Gateway REST API to have a Lambda proxy integration. Use the REST
  • CSet up an AWS AppSync API to have a Lambda resolver. Use a GraphQL endpoint for testing.
  • DSet up an Amazon ECS container that runs an open source web proxy and Lambda code. Use

How the community answered

(53 responses)
  • A
    92% (49)
  • B
    2% (1)
  • C
    4% (2)
  • D
    2% (1)

Explanation

Lambda function URLs provide a built-in HTTPS endpoint for invoking a Lambda function directly, without needing to provision or manage API Gateway, AppSync, or any additional infrastructure. This enables quick endpoint exposure for frontend testing with minimal setup and operational

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