A new self-service provisioning system has been deployed to serve the company's rapid VM provisioning needs. Since the website is in the DMZ, HTTPS is required, but company policy states that SSL…

A new self-service provisioning system has been deployed to serve the company's rapid VM provisioning needs. Since the website is in the DMZ, HTTPS is required, but company policy states that SSL certificates can not terminate at the server. The company also has a requirement that the web portal be redundant while providing session state. Which of the following availability technologies can be used to meet the company's requirements?