What is infra scaling and how Autoscale works in AWS ?

In any traditional infrastructure, we can see scaling up and down the network or servers can be done through tools or manually.

In Cloud service we can do these activities using a Cloud service.

If we consider the AWS services, Autoscale is the service to monitor and add the needed VMs or delete the unused instances from the network [VPC/Subnet].

The attached video has the class discussion on this topic.