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DOP-C02 · Question #457

A company deployed an Amazon CloudFront distribution that accepts requests and routes to an Amazon API Gateway HTTP API. During a recent security audit, the company discovered that requests from the…

The correct answer is D. Implement a custom header in the CloudFront distribution. Implement an AWS Lambda authorizer. To restrict direct access to API Gateway, add a custom header in the CloudFront distribution origin request and use a Lambda authorizer in API Gateway to validate that header. Only requests routed through CloudFront will include this header. This is the AWS-recommended pattern…

Submitted by hassan_iq· Mar 6, 2026Security and Compliance

Question

A company deployed an Amazon CloudFront distribution that accepts requests and routes to an Amazon API Gateway HTTP API. During a recent security audit, the company discovered that requests from the internet could reach the HTTP API without using the CloudFront distribution. A DevOps engineer must ensure that connections to the HTTP API use the CloudFront distribution. Which solution will meet these requirements?

Options

  • AEnable VPC Flow Logs to identify requests that reach the HTTP API.
  • BDeploy AWS WAF in front of the CloudFront distribution.
  • CImplement an identity-based policy on the CloudFront distribution that requires authentication to
  • DImplement a custom header in the CloudFront distribution. Implement an AWS Lambda authorizer

How the community answered

(32 responses)
  • A
    19% (6)
  • B
    3% (1)
  • C
    6% (2)
  • D
    72% (23)

Explanation

To restrict direct access to API Gateway, add a custom header in the CloudFront distribution origin request and use a Lambda authorizer in API Gateway to validate that header. Only requests routed through CloudFront will include this header. This is the AWS-recommended pattern in "Secure your APIs behind CloudFront using custom headers and Lambda authorizers."

Topics

#CloudFront#API Gateway#Security Hardening#Access Control

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