Certification 59 Electronic data processing personnel Examinations 55 Computer networks 30 Engineering & Applied Sciences 19 Computer Science 17 Computer security 11 Security measures 10 Management 7 Cloud computing 6 Information technology 5 Operating systems (Computers) 5 Amazon Web Services (Firm) 4 Electrical & Computer Engineering 4 Linux 4 Telecommunications 4 Business 3 Computer programs 3 Internetworking (Telecommunication) 3 Microsoft Office 3 Microsoft software 3 VMware vSphere 3 Virtual computer systems 3 Access control 2 Audio-visual equipment 2 Backup processing alternatives 2 Cisco Systems, Inc 2 Client/server computing 2 Computer storage devices 2 Computer technicians 2