Telecommunications engineers 96 Certification 95 Examinations 92 Computer networks 69 Electronic data processing personnel 34 Engineering & Applied Sciences 28 Electrical & Computer Engineering 24 Telecommunications 23 Security measures 21 Internetworking (Telecommunication) 16 Telecommunication 15 Switching systems 14 Routing (Computer network management) 10 Computer Science 6 Computing Technology Industry Association 6 Wireless LANs 6 Computer security 5 Wireless communication systems 5 Management 4 Routers (Computer networks) 4 Cisco IOS 3 Computer network protocols 3 Computer technicians 3 Maintenance and repair 3 Microcomputers 3 Microsoft Windows server 3 Penetration testing (Computer security) 3 Cloud computing 2 Computers 2 Data transmission systems 2