A company has a three-tier environment on AWS that ingests sensor data from its users’ devices. The traffic flows through a Network Load Balancer (NIB) then to Amazon EC2 instances for the web tier and finally to EC2 instances for the application tier that makes database calls
What should a solutions architect do to improve the security of data in transit to the web tier?
A . Configure a TLS listener and add the server certificate on the NLB
B . Configure AWS Shield Advanced and enable AWS WAF on the NLB
C . Change the load balancer to an Application Load Balancer and attach AWS WAF to it
D . Encrypt the Amazon Elastic Block Store (Amazon EBS) volume on the EC2 instances using AWS Key Management Service (AWS KMS)
Answer: A
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