Metro Ethernet Circuit Analysis, MPLS Network - S2S & C2S VPN - P2P Network and Network Design, Fortinet Firewall and Network Equipment  - Checkpoint Firewall - Watchguard Firewall - Cisco Firewall Installation and Operating, Cisco Router, Cisco Switch Installation and Operating, F5 Load Balancer Installation and Opareting, GSM - APN Network Desing, Network Backup, Routing Protocols & Switching.