This series prepares you for the CompTIA Network+ (N10-008) exam, one of the most important entry-level certifications in the IT industry. In part four of this series, instructors Mike Meyers and Joe Ramm go over how to make TCP/IP work. Mike and Joe explain how core protocols such as TCP, UDP, ICMP, and IGMP function. They cover handy network tools and introduce you to Wireshark, netstat, web servers, and FTP. Mike and Joe discuss email servers and clients, securing email, network service scenarios, and more. Plus, they dive into network naming, covering topics like understanding and applying DNS, Windows name resolution, dynamic DNS, and DNS troubleshooting.