Detailed product knowledge - WorldCom proprietary wide area network
Nodes - hub/hub gatherer (tandem), terminal adjacent (dial X.28), host adjacent (customer X.25), telco gateway X25, hybrid PPP, sentry (remote diagnostics & emergency tool), point of sale hardware (Visa), site cabling (QY, QM, DIPL).
1022 protocol databases - NETCMD (status and diagnostics commands), NOES and NODEINQ (documentation for installs, sites and inventory), NCCLOD (node software loading and recording).