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Answer: Implement AWS WAF and set up rate-limiting rules with the ALB.
The correct answer is B: 'Implement AWS WAF and set up rate-limiting rules with the ALB.' AWS WAF (Web Application Firewall) allows you to create rules to block common attack patterns, including DDoS attacks. By associating AWS WAF with the ALB and configuring rate-limiting rules, you can effectively block illegitimate requests without affecting legitimate users. Options A, C, and D are not suitable for this purpose as they either do not address web traffic filtering or lack the necessary rate-limiting capabilities.
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An ecommerce website hosted on Amazon EC2 instances with an Application Load Balancer (ALB) and Auto Scaling is facing performance issues due to high illegitimate request rates, possibly indicating a DDoS threat. What is the recommended solution to mitigate these threats while minimizing impact on legitimate users?
A
Use Amazon Inspector with the ALB.
B
Implement AWS WAF and set up rate-limiting rules with the ALB.
C
Create network ACL rules to block traffic to the ALB.
D
Utilize Amazon GuardDuty for enhanced protection configuration.
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