2nd Level Support, Access Control, Antivirus, Communication Skills, Computer Maintenance, Computer Science, Computer Systems, Customer Support/Service, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Desktop PC, Documentation, Firewalls, Help Desk, Identify Issues, Identity Data Management, Incident Response, Information Technology & Information Systems, Laptop PC, Linux Operating System, Mac Operating System, Microsoft Certifications, Microsoft Product Family, Microsoft Windows Operating System, Mobile Devices, Network Performance/Analysis, Network Routers, Network Support, Network Switching, Network Systems, Operating Systems, Performance Analysis, Policy Implementation, Printers, Problem Solving Skills, Security Monitoring, Security Patches, Software Administration, Software Installation, Systems Administration/Management, Systems Maintenance, TCP/IP (Transmission Control Protocol/Internet Protocol), Technical Support, Testing, Time Management, User Account Administration, VPN (Virtual Private Network), Wireless LAN