A developer has an application that uses WebSocket APIs in Amazon API Gateway. The developer wants to use an API Gateway Lambda authorizer to control access to the application. The developer needs to add credential caching and reduce repeated usage of secret keys and authorization tokens on every request. Which combination of steps should the developer take to meet these requirements? (Choose two.)

Topic #: - All AWS Certified Developer - Associate DVA-C02 Questions

A. Use a token-based Lambda authorizer.
B. Use a request parameter-based Lambda authorizer.
C. Configure an integration request mapping template to reference the context map from the APIGateway Lambda authorizer.
D. Configure an integration request mapping template to reference the identity API key value from the API Gateway Lambda authorizer.
E. Use VPC endpoint policies for the WebSocket APIs.

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