Azure Virtual Networks
Azure Virtual Networks (VNet) is a networking service in Microsoft Azure that enables secure communication between Azure resources, on-premises networks, and the internet. It provides isolation, segmentation, and control over network traffic through features like subnets, network security groups, and custom routing. VNets form the foundational layer for deploying and connecting virtual machines, containers, and other cloud services in Azure.
Developers should learn Azure Virtual Networks when building scalable, secure cloud applications on Azure, as it is essential for implementing network security, hybrid cloud connectivity, and compliance with data residency requirements. Use cases include setting up private networks for multi-tier applications, connecting Azure services to on-premises infrastructure via VPN or ExpressRoute, and isolating development/test environments from production networks.