The Cisco Certified Network Associate (CCNA) certification is the gold-standard credential for aspiring network administrators working with industry-standard Cisco hardware. The CCNA exam goes deep, and this book will help you prepare for the most difficult parts of the test. Acing the CCNA Exam, Volume 2 covers the demanding topics of network security, wired and wireless LANs, DNS, and more. Acing the CCNA Exam, Volume 2 introduces the technical skills and secrets you need to navigate the most challenging topics on the CCNA exam. CCNA expert Jeremy McDowell guides you through network services and architectures, automation, and other advanced topics you'll face in the later parts of the test. His down-to-earth writing, diagrams, and clear examples make even the most complex topics easy to understand. What's Inside Security concepts and common threats, Ethernet and wireless LANs (Wi-Fi) and network automation, Essential network services like DHCP and DNS, WAN, LAN, and wireless architectures This book builds on Acing the CCNA Exam, Volume 1.