AWS Certified Solutions Architect Associate Test 8

Before you start using Elastic Load Balancing(ELB), you have to configure the listeners for your loadbalancer. A listener is a process that listens for connection requests. It is configured with a protocol and a port number for front-end (client to load balancer) and back-end (load balancer to back-endinstance) connections.
Elastic Load Balancing supports the load balancing of applications using HTTP, HTTPS (secure HTTP),TCP, and SSL (secure TCP) protocols. The HTTPS uses the SSL protocol to establish secure connectionsover the HTTP layer. You can also use SSL protocol to establish secure connections over the TCPlayer.
The acceptable ports for both HTTPS/SSL and HTTP/TCP connections are 25, 80, 443, 465, 587, and1024-65535.
Reference: http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-listenerconfig.html