Windows / Linux OS troubleshooting
Patch updates,drivers installation, configure and enable services like FTP,SAMBA,SMTP,backup services, application services at desk/Lowend servers etc
Networking concept (OSI,TCP/IP,Topology etc)
Anti Virus support at Server side (monitoring
( Any Server mentioned here means high end desktop )
Backup software and recovery techniques
OS backup / recovery knowledge - branch servers and low end Servers with 3rd party softwares like Dhruva,Symantec etc
Basic Virtualization skills - VM Disks monitoring and management,
MS Exchange,O365 or any other messaging skills (client side)