CCNA Practical Studies is a comprehensive reference that helps you gain essential hands-on experience in home-, work-, or remote access-based lab environments. An equally effective supplement to concept-based study guides or stand-alone reference for applying CCNA knowledge pre- or post-test, this book presents numerous examples that cover the entire range of CCNA topics. Starting at the physical layer of the OSI model, you use a layered approach to learn how to build a small network.