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Question 855 - SAA-C03 discussion

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A company is developing an application in the AWS Cloud. The application's HTTP API contains critical information that is published in Amazon API Gateway. The critical information must be accessible from only a limited set of trusted IP addresses that belong to the company's internal network.

Which solution will meet these requirements?

A.

Set up an API Gateway private integration to restrict access to a predefined set ot IP addresses.

Answers
A.

Set up an API Gateway private integration to restrict access to a predefined set ot IP addresses.

B.

Create a resource policy for the API that denies access to any IP address that is not specifically allowed.

Answers
B.

Create a resource policy for the API that denies access to any IP address that is not specifically allowed.

C.

Directly deploy the API in a private subnet. Create a network ACL. Set up rules to allow the traffic from specific IP addresses.

Answers
C.

Directly deploy the API in a private subnet. Create a network ACL. Set up rules to allow the traffic from specific IP addresses.

D.

Modify the security group that is attached to API Gateway to allow inbound traffic from only the trusted IP addresses.

Answers
D.

Modify the security group that is attached to API Gateway to allow inbound traffic from only the trusted IP addresses.

Suggested answer: B

Explanation:

Amazon API Gateway supports resource policies, which allow you to control access to your API by specifying the IP addresses or ranges that can access the API. By creating a resource policy that explicitly denies access to any IP address outside the allowed set, you can ensure that only trusted IP addresses (such as those from your internal network) can access the critical information in your API. This approach provides fine-grained access control without the need for additional infrastructure or complex configurations.

Option A (Private integration): API Gateway private integrations are for creating private APIs that are only accessible within a VPC, but this solution is about restricting access to certain IP addresses.

Option C (Private subnet and ACLs): Deploying the API in a private subnet and using network ACLs adds unnecessary complexity and isn't the best fit for HTTP APIs.

Option D (Security group): API Gateway doesn't have a security group because it isn't a resource inside a VPC. Instead, resource policies are the correct mechanism for controlling IP-based access.

AWS

Reference:

Controlling Access to API Gateway with Resource Policies

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asked 27/10/2024
TJOE INKAWATI
29 questions
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