I'm multi-domain worker like : *Routing & Switching ( CCNA ) *MPLS *Network Automation *Frame Relay *VoIP *Cyber Security ( CCNA Security - MTA Security ) *Linux Administration { Servers & Workstations } ( CentOs / Ubuntu / Fedora / Kali ) *Windows Administration { Servers & Workstations } ( XP / 2003 / 2008 / 2010 / 2012 / 2016 ) *Computer Maintenance