Your company will begin using Azure and migrate all network resources there. To start planning and exploring Azure, what should you create first?

An Azure subscription is the foundational billing unit and logical container for all Azure resources. You need a subscription to deploy any resources, including virtual networks, resource groups, and management groups. Without a subscription, you cannot access or provision Azure services. A resource group is a logical container for related resources within a subscription, but you can't create one without a subscription first. A virtual network is a networking service within Azure, which also requires a subscription to exist. A management group is used for organizing subscriptions and applying governance at a higher level, but you still need at least one subscription to begin with.