Internetworking (Telecommunication) 547 Computer networks 217 Certification 114 Examinations 103 TCP/IP (Computer network protocol) 76 Electronic data processing personnel 67 Computer network protocols 55 Routers (Computer networks) 52 Study guides 51 Local area networks (Computer networks) 49 Telecommunications engineers 48 Telecommunication systems 30 Telecommunication 29 Mobile communication systems 27 Internet telephony 23 Design and construction 21 Wireless communication systems 19 Software configuration management 15 Internet 14 Switching systems 13 Client/server computing 12 Ad hoc networks (Computer networks) 11 Computer network architectures 11 Management 11 Data processing 10 Network performance (Telecommunication) 10 Wide area networks (Computer networks) 10 Routing protocols (Computer network protocols) 9 Asynchronous transfer mode 8 Long-Term Evolution (Telecommunications) 8