Acing the CCNA Exam, Volume 2

Master the most challenging elements of the CCNA exam to pass on your very first try! The CCNA goes deep on networking and security. Acing the CCNA Exam, Volume 2 gives you exactly what you need to navigate the most challenging parts of the exam. Author Jeremy McDowell’s CCNA courses have helped hundreds of thousands of students pass their exams. This book distills that expertise into an easy-to-follow guide. In Acing the CCNA Exam, Volume 2—Advanced Networking and Security you’ll dig into tough topics like: • 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 The Cisco Certified Network Associate is the gold-standard credential for network administrators. It demands an in-depth knowledge of complex network internals, including security, wireless architectures, and more. Acing the CCNA Exam, Volume 2—Advanced Networking and Security builds on the basics you learn in Volume 1 to help you study and prepare for the most challenging parts of the test. About the Technology 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. About the Book 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 About the Readers This book builds on Acing the CCNA Exam, Volume 1. About the Author Jeremy McDowell is a senior network engineer and an experienced teacher. His YouTube channel, Jeremy’s IT Lab, has helped hundreds of thousands prepare for the CCNA. The technical editor on this book was Jeremy Cioara. Table of Contents Part 1 1 Cisco Discovery Protocol and Link Layer Discovery Protocol 2 Network Time Protocol 3 Domain Name System 4 Dynamic Host Configuration Protocol 5 Secure Shell 6 Simple Network Management Protocol 7 Syslog 8 Trivial File Transfer Protocol and File Transfer Protocol 9 Network Address Translation 10 Quality of service Part 2 11 Security concepts 12 Port Security 13 DHCP Snooping 14 Dynamic ARP Inspection Part 3 15 LAN architectures 16 WAN architectures 17 Virtualization and cloud Part 4 18 Wireless LAN fundamentals 19 Wireless LAN architectures 20 Wireless LAN security 21 Wireless LAN configuration Part 5 22 Network automation 23 REST APIs 24 Data formats 25 Ansible and Terraform A Exam topics reference table B CLI command reference table C Chapter quiz questions D Chapter quiz answers