Infrastructure; the integrated framework upon which digital networks operate. This infrastructure includes data centers, computers, computer networks, database Management devices, and a regulatory system.
Both internally and on the web, infrastructure is the physical hardware used to interconnect computers and users. Infrastructure includes the transmission media, including telephone lines, cable television lines, and satellites and antennas, and also the routers that transfer data between disparate transmission technologies.
VPN / DNS / Windows / ISDN / Office / Firewalls / MCITP / Server 2003-2008 / Exchange / LAN/WAN
For infrastructure technology, C will be hard to displace."