Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 323 Topic 33 Discussion

Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 323 Topic 33 Discussion

SAA-C03 Exam Topic 33 Question 323 Discussion:
Question #: 323
Topic #: 33

A company hosts an application on Amazon EC2 instances that are part of a target group behind an Application Load Balancer (ALB). The company has attached a security group to the ALB.

During a recent review of application logs, the company found many unauthorized login attempts from IP addresses that belong to countries outside the company's normal user base. The company wants to allow traffic only from the United States and Australia.


A.

Edit the default network ACL to block IP addresses from outside of the allowed countries.


B.

Create a geographic match rule in AWS WAF. Attach the rule to the ALB.


C.

Configure the ALB security group to allow the IP addresses of company employees. Edit the default network ACL to block IP addresses from outside of the allowed countries.


D.

Use a host-based firewall on the EC2 instances to block IP addresses from outside of the allowed countries. Configure the ALB security group to allow the IP addresses of company employees.


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