If we consider Active Directory to be the most common and central role in making our Microsoft-centric networks function, then the Domain Name System (DNS) role slides in at number two. I am yet to meet an admin who has chosen to deploy a domain without deploying DNS at the same time, they always go hand-in-hand.
DNS is a service that is typically provided by a Windows Server, but doesn't have to be. There are many different platforms available all the way from Linux servers to specialized hardware appliances designed specifically for managing DNS within a network that can be utilized for this role. For most Microsoft-centric networks, and for the purposes of this book, we will assume that you want to use Windows Server 2016 for ...