Development 111 Examinations 109 Certification 104 Application software 98 Electronic data processing personnel 89 Computer networks 85 Cloud computing 56 Java (Computer program language) 53 Management 39 Security measures 39 Computer security 36 Python (Computer program language) 36 Linux 35 Operating systems (Computers) 33 Machine learning 28 Computer software 26 Web site development 25 Database management 23 Design 20 JavaScript (Computer program language) 20 Amazon Web Services (Firm) 18 Client/server computing 18 Application program interfaces (Computer software) 16 Information technology 16 Web applications 16 Computer programming 15 Web sites 15 Agile software development 13 Data mining 13 Data processing 13