1. Install New / Rebuild / Manage Servers, Virtual Machines, Storage, Exchange, Database.
2. Good Knowledge on Hyper V, VMware, Exchange Mail,Server hardware.
3. Good hands on Window server 2008 and 2012, MS exchange 2010 and 2013, MS SQL Database Administration
4. Should have clear knowledge on Active Directory, DNS, DHCP, WSUS, SCCM, IIS, Group Policy.