
Answer-first summary for fast verification
Answer: AWS Security Token Service (STS)
Correct option: Amazon API Gateway is an AWS service for creating, publishing, maintaining, monitoring, and securing REST, HTTP, and WebSocket APIs at any scale. API developers can create APIs that access AWS or other web services, as well as data stored in the AWS Cloud.
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In the context of securing an API that integrates with a downstream AWS Lambda function, a developer needs to implement robust access control mechanisms.
Which of the following options describes a method that CANNOT be utilized for authenticating with the API Gateway?
A
AWS Security Token Service (STS)
B
Lambda Authorizer
C
Cognito User Pools
D
Standard AWS IAM roles and policies
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