What types of load balancers are supported in EC2 and what are they used for?
Answer
Application LB - layer 7 traffic
Network LB - ultra-high performances or static IP address (layer 4)
Classic LB - low costs, good for test or dev environments (retired by August 15, 2022)
Gateway LB - transparent network gateway and and distributes traffic such as firewalls, intrusion detection and prevention systems, and deep packet inspection systems. (layer 3)