Examinations 12 Telecommunications engineers 12 Certification 11 Computer networks 8 Internetworking (Telecommunication) 4 Electrical & Computer Engineering 3 Engineering & Applied Sciences 3 Security measures 3 Telecommunication 3 Telecommunications 3 Electronic data processing personnel 2 Penetration testing (Computer security) 2 Routers (Computer networks) 2 Switching systems 2 Cloud computing 1 Computer network protocols 1 Computer security 1 Computer technicians 1 Computers 1 Computing Technology Industry Association 1 Internet videos 1 Maintenance and repair 1 Microcomputers 1 Packet switching (Data transmission) 1 Routing protocols (Computer network protocols) 1 Streaming video 1 Technology & Engineering 1