Take your first step to CCNA certification





From bestselling author Todd Lammle comes the most up-to-date book on CCNA exam 640-821, the first exam in Cisco's popular two-exam Cisco Certified Network Associate (CCNA) certification track. Understand networking for the small or home office market, prepare for the exam, and acquire the skills you need with this comprehensive guide. Inside you'll find:



Complete coverage of all exam objectives in a systematic approach, so you can be confident you're getting the instruction you need



Practical hands-on exercises to reinforce critical skills



Real-world scenarios that show you life beyond the classroom and put what you've learned in the context of actual job roles



Challenging review questions in each chapter to prepare you for exam day



Exam Essentials, a key feature at the end of each chapter...