Virtual Networks

A virtual network in cloud computing is a software-defined network that replicates the functionality of a physical network entirely in software, allowing cloud resources to communicate with each other, with on-premises systems, and with the Internet. Virtual networks are defined through configuration rather than physical cabling, making them fast to create, easy to modify, and infinitely scalable. Each cloud provider has its own implementation —AWS calls it a VPC, Azure calls it a VNet, and GCP also uses the VPC model— but all share the same core concept of providing isolated, configurable network environments for cloud resources.