CompTIA Security+ validates knowledge of communication security, infrastructure security, cryptography, operational security, and general security concepts. It is an international, vendor-neutral certification that is taught at colleges, universities and commercial training centers around the world. Major corporations such as Sun, IBM/Tivoli Software Group, Symantec, Motorola, Hitachi Electronics Services and Verisign value the CompTIA Security+ certification and recommend or require it of their IT employees.Computer and network security is the hottest subspecialty in the IT field today. CompTIA's Security+ exam focuses on this field. The Security+ Study Guide & DVD Training System is a one-of-a-kind integration of text, DVD-quality instructor-led training, and Web-based exam simulation and remediation, giving students 100% coverage of official CompTIA Security+ exam objectives plus realistic test prep for the edge they need to achieve certification on their first try.*Only Security+ book that comes with a DVD*Revision to market-leading first edition*Realistic, Web-based practice exams included