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Question 741 - SAA-C03 discussion

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A company uses AWS to host its public ecommerce website. The website uses an AWS Global Accelerator accelerator for traffic from the internet. Tt\e Global Accelerator accelerator forwards the traffic to an Application Load Balancer (ALB) that is the entry point for an Auto Scaling group.

The company recently identified a ODoS attack on the website. The company needs a solution to mitigate future attacks.

Which solution will meet these requirements with the LEAST implementation effort?

A.
Configure an AWS WAF web ACL for the Global Accelerator accelerator to block traffic by using rate-based rules.
Answers
A.
Configure an AWS WAF web ACL for the Global Accelerator accelerator to block traffic by using rate-based rules.
B.
Configure an AWS Lambda function to read the ALB metrics to block attacks by updating a VPC network ACL.
Answers
B.
Configure an AWS Lambda function to read the ALB metrics to block attacks by updating a VPC network ACL.
C.
Configure an AWS WAF web ACL on the ALB to block traffic by using rate-based rules.
Answers
C.
Configure an AWS WAF web ACL on the ALB to block traffic by using rate-based rules.
D.
Configure an Ama7on CloudFront distribution in front of the Global Accelerator accelerator
Answers
D.
Configure an Ama7on CloudFront distribution in front of the Global Accelerator accelerator
Suggested answer: A

Explanation:

Understanding the Requirement: The company needs to mitigate DDoS attacks on its website, which uses AWS Global Accelerator to route traffic to an Application Load Balancer (ALB).

Analysis of Options:

AWS WAF on Global Accelerator: Allows for centralized protection and can block traffic based on rate-based rules, effectively mitigating DDoS attacks with minimal implementation effort.

Lambda Function and VPC Network ACL: Requires custom implementation and ongoing management, increasing complexity and effort.

AWS WAF on ALB: Provides protection but involves additional configuration and management at the ALB level.

CloudFront Distribution in front of Global Accelerator: Adds unnecessary complexity and changes the current traffic flow setup.

Best Solution:

AWS WAF on Global Accelerator: This provides the required protection with the least implementation effort, ensuring effective DDoS mitigation and maintaining the existing architecture.

AWS WAF

Using AWS WAF with AWS Global Accelerator

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asked 16/09/2024
Nogueira Elder
39 questions
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