Certification 39 Computer networks Electronic data processing personnel Examinations 37 Computer security 10 Microsoft software 9 Security measures 9 more ... Computer technicians 2 Authoring programs 1 Client/server computing 1 Computer crimes 1 Computer hackers 1 Data encryption (Computer science) 1 Directory services (Computer network technology) 1 Firewalls (Computer security) 1 Forensic sciences 1 Internet 1 Investigation 1 Management 1 Routers (Computer networks) 1 Web sites 1 less ...