Operating systems: (Windows 10/11, Windows Server 2012 R2/2016/2019)Networking: TCP/IP, DNS, DHCP, VPNRemote desktop tools: LogMein, Webex, Remote Desktop, and MS TeamsTicketing systems: (ServiceNow, BMC Remedy)Virtualization technologies (VMware, Citrix Virtual Apps, and Desktops & Nutanix)