Summary
Networks are made up of various tangible elements like network devices, switches, and network routers. Other aspects, like network communication protocols and network security, protect your organization's assets and resources. Understanding the underlying network protocols and standards and how networks communicate is an essential step in understanding Azure concepts.
In this module, you explored the principles of networks and gained an understanding of the essential components and building blocks for all networks. You explored the reasons why network protocols and standards are needed. You saw how they shape and allow interoperability of both hardware and software when you build and maintain networks. You now know the difference between a LAN and a WAN and the different Ethernet types. Lastly, you explored TCP/IP, subnets, DNS, and some of the core communication protocols like IPv4 and IPv6.