SYSTEM:Windows Server, Active
Directory, DHCP, DNS, Exchange
Server, Print Server, DFS, RRAS, NPAS, IIS, WSUS, RADIUS, VPN, RDP, VMware, Hyper-V, Windows Defender, PowerShell. NETWORK: Routing, Switching, Wireless, VLAN, LAN-WAN, Subnetting, ACL, NAT -PAT, UTM-Firewall, IPv4, IPv6. SOFTWARE: C, Python, Visual
Basic, C#, Visual Studio, Arduino. DATABASE: T-SQL, MySQL, MsSQL.