Engineering & Applied Sciences 290 Electrical & Computer Engineering 244 Telecommunications 241 Computer networks 217 Examinations 132 Certification 119 Electronic data processing personnel 92 Security measures 92 Computer Science 59 Internetworking (Telecommunication) 43 Telecommunication 36 Internet telephony 35 Management 34 Telecommunications engineers 34 Switching systems 27 Cisco IOS 25 Redes de ordenadores 25 TCP/IP (Computer network protocol) 25 Computer security 24 Routers (Computer networks) 24 Cisco Systems, Inc 22 Computer network protocols 21 Extranets (Computer networks) 20 Wireless LANs 20 Cloud computing 15 Telecomunicaciones 15 Computers 14 Design and construction 14 Firewalls (Computer security) 14 Local area networks (Computer networks) 14