Creating a VPC in AWS
In AWS terms a VPC is an isolated network environment. It is like your own lab network - complete with an internet connection, routers, switches and of course computers. You do not set up a lab just for the sake of it. Rather you set up a lab to contain a set of computers. These computers - or instances - do your major productive work. They serve websites, host databases, run algorithms on data and so on. Along with these major players, you have other types of computers doing things like monitoring the computers, load balancing, traffic routing etc. The whole point of having a vpc - a virtual network - is to someday have lots of (virtual) computers. So be prepared for it. Regions, VPCs and Availability zones ⇱ An aws region is one datacenter - in a city. So we have regions like N. Virginia, Oregon etc. Almost all things in aws are confined to any one region. VPCs reside within a region. You cannot have your network span across Ohio and Mumbai. You can have one vpc in