Examinations 18 Certification 14 Electronic data processing personnel 11 Computer security 7 Computer networks 6 Application software 4 Development 4 Linux 4 Computer technicians 3 Computing Technology Industry Association 3 Microcomputers 3 Operating systems (Computers) 3 Security measures 3 Virtual computer systems 3 Computer programmers 2 Maintenance and repair 2 Management 2 Red Hat, Inc 2 Systems engineering 2 Cisco Systems, Inc 1 Cloud computing 1 Electronic data processing 1 Information technology 1 Internetworking (Telecommunication) 1 Java (Computer program language) 1 Kubernetes 1 Microsoft Corporation 1 Penetration testing (Computer security) 1 Project management 1 Routing (Computer network management) 1