When the computer revolution took place, networks were a very important piece of the puzzle, letting computers communicate with each other.
Throughout the IT revolution, networks have been an indispensable part of every IT environment. It is no surprise that networking is a vital part of the cloud, for many reasons—from remote connections to your Azure VMs, to spanning your environment across on-premises networks and Azure. Networks are used with almost all Azure services, including (but not limited to) Azure VMs, Azure SQL Databases, Azure Web Apps, and so on.