Infrastructure Services
DNS
DHCP
File Services
Key management
Terminal Services
Remote Access
Windows Server Update Services
Web Services (IIS)

Identity Services
Active Directory Domain Services
Active Directory Certificate Authority(PKI)
Active Directory Rights Management Services
Active Directory Federation Services

Windows Deployment Services
Virtualization & Data Center Mgmt. Services
Hyper-V
SCVMM
SCOM
SCCM
SCDPM

Messaging & Collaboration Services
Exchange
Skype for Business
SharePoint (Administration)
Office Online Server

Database
SQL Server
Development Tools
Azure DevOps Server\ GitHub