How ELB works

Since all the ELB terminologies and features are explained, let's look at how exactly ELB works.

The working of the Classic Load Balancer

As per the OSI model, a Classic Load Balancer runs at layer four, which is the transport layer. Layer four operates at the network protocol level. It does not check the content of actual network packets. A transport layer-level load balancer does not check the specific details of HTTP and HTTPS requests. In other words, it distributes the load without necessarily knowing much detail about the incoming traffic requests. A user creates the Classic Load Balancer with instances spread across one or more AZs.

The load balancer configuration includes the following:

• The security...