Installing Windows Server 2016 roles and features

To enable Windows Server 2016 to perform a specific duty or to enhance it to support a particular task, you need to install server roles and features:

• Server roles is a collection of services that are usually installed together to enable the Windows Server to perform a certain function. Examples of server roles include DNS Server, DHCP Server, or Active Directory Domain Services. A Windows Server computer can perform one or more roles at the same time, depending on the installation environment and the number of users it supports.
  Smaller companies or organizations often have servers that perform many functions or roles, while larger companies or enterprises might have multiple servers configured with one dedicated role only. These dedicated servers are likely to be used more heavily, serving a larger number of users, devices, or requests.
• Features are services or additional programs that enhance a server's or a role's capabilities. They do not necessarily need a role as a prerequisite for installation or to perform a function. Examples of features include BitLocker Drive Encryption, Containers, and Network Load Balancing.

You can add, remove, and configure roles and features either locally, using Server Manager or Windows PowerShell, or remotely, using Server Manager, Windows PowerShell, remote server, or Remote Server Administration Tools (RSAT). You can install or uninstall roles and features on a physical computer, virtual machine, or on an offline virtual hard disk (VHD).