<h4>A complete, authoritative exam guide covering CompTIA Security+ exam SY0-401</h4><p>Co-written by two of the leading IT security academics, <i>CompTIA Security+ All-in-One Exam Guide, Fourth Edition</i> offers 100% coverage of all SY0-401 exam objectives. The book features learning objectives at the beginning of each chapter, exam tips, practice exam questions, and in-depth explanations. Designed to help you pass the exam with ease, this definitive guide also serves as an on-the-job reference for IT security professionals.<ul><li>Electronic content includes two practice exams and a PDF eBook<li>CompTIA reviewed and approved: CompTIA Approved Quality Content (CAQC)</ul></p>