Programming: Cisco Command Line Interface (CLI), Basic SQL, Perl (Intermediate Level), Shell (Intermediate Level), Algorithm (High Level), C & C++ (Intermediate Level)
Protocols: Cisco (routers, switchers, IOS), eBGP, iBGP, EIGRP (IPv6), OSFP v2, OSFP v3, QoS, Layer 2, Layer 3, IPv6, RIP v2, RIP ng, Advanced IP addressing and routing, configuration of secured routing solutions, WLAN, LAN, WAN, Dynamic Multipoint VPN (DMVPN), Cisco Stackwise, Virtual Switch Services (VSS), IPSEC based VPN site-to-site tunnels
Operating Systems: Windows (NT, XP, Vista, 7, 8, 10), UNIX
Software: Microsoft Suite, Anti-virus, Anti-spam, anti-spyware