Explanation:
To support automatic redirection from HTTP to HTTPS, an Application Load Balancer (ALB) must have a listener on port 80 (HTTP) to catch the initial request and a listener on port 443 (HTTPS) to handle the secure traffic. The HTTP listener can then be configured with a "Redirect" action to point users to the HTTPS listener. ACM certificates are applied to the HTTPS listener on port 443. Network Load Balancers (NLB) do not support the HTTP-to-HTTPS redirect rule natively like ALBs do.
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Question #9 A company plans to run a public web application on Amazon EC2 instances behind an Elastic Load Balancing (ELB) load balancer. The company's security team wants to protect the website by using AWS Certificate Manager (ACM) certificates. The load balancer must automatically redirect any HTTP requests to HTTPS. Which solution will meet these requirements?
A
Create an Application Load Balancer that has one HTTPS listener on port 80. Attach an SSL/TLS certificate to listener port 80. Create a rule to redirect requests from HTTP to HTTPS.
B
Create an Application Load Balancer that has one HTTP listener on port 80 and one HTTPS protocol listener on port 443. Attach an SSL/TLS certificate to listener port 443. Create a rule to redirect requests from port 80 to port 443.
C
Create an Application Load Balancer that has two TCP listeners on port 80 and port 443. Attach an SSL/TLS certificate to listener port 443. Create a rule to redirect requests from port 80 to port 443.
D
Create a Network Load Balancer that has two TCP listeners on port 80 and port 443. Attach an SSL/TLS certificate to listener port 443. Create a rule to redirect requests from port 80 to port 443.
E
None
F
None
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