AWS Certified Solutions Architect - Professional (#418)

Your supervisor has given you the task of creating an elastic network interface on each of your web servers that connect to a mid-tier network where an application server resides. He also wants this set up as a Dual-homed Instance on Distinct Subnets. Instead of routing network packets through the dual-homed instances, where should each dual-homed instance receive and process requests to fulfil his criteria?

On one of the web servers
On the front end
On the back end
Through a security group