Security 
...rks and familiarity with other operating systems, such as
NetWare,
Macintosh,
UNIX/
Linux, and OS/2, who wants to: further a career in IT by acquiring a foundational knowledge of security topics; prepare for the
CompTIA Security+ Certification examination; or use
Security+ as the foundation for advanced security certifications or career roles.
Prerequisites:
CompTIA A+ and
Network+
more...