The CCNA certification continues to be one of the most highly prized of all IT certifications. This set of books and CDs from Cisco Press and revered trainer Wendell Odom is consistently the bestselling guide to passing the CCNA exam. This new edition has been fully updated to refresh the content, add new exercises, and enhance certain essential exam topics. A significant amount of new exercises have been added. Several chapters and an appendix have been completely updated and revised. In addition to the new content in the print books, this new edition includes a completely new test prep engine, and an exclusive free network simulator.