Eleventh Hour Security+: Exam SY0-201 Study Guide offers a practical guide for those preparing for the CompTIA Network+ exam. The book's 10 chapters provide in-depth discussions of the following topics: network fundamentals; network media; network devices; wireless networking; open systems interconnection (OSI) model and networking protocols; transmission control protocol/internet protocol (TCP/IP) and IP routing; wide area networking; hardware and software security; network management; and network troubleshooting. Each chapter includes information on exam objectives, exam warnings, and the top five toughest questions along with their answers.