You are creating a virtual network for your organization. What is the minimum required to define a virtual network?

Correct answer: Virtual network name, address space, and subnet

To create an Azure Virtual Network, the minimum required inputs are the virtual network name, an address space (in CIDR notation), and at least one subnet within that address space; these three elements are mandatory during provisioning in the Azure portal or via ARM templates. Option B is incorrect because a Network Security Group (NSG) is optional and can be associated with a subnet or NIC after VNet creation, not required at creation time. Option C is incorrect because a gateway and route table are optional components used for VPN connectivity and custom routing respectively, and neither is required to define a basic virtual network. Option D is incorrect because while a resource group is a required deployment context, it alone with the VNet name is insufficient; an address space and subnet must also be defined for the virtual network to be functional.