To define interoperability between network devices and software, the ISO created the OSI model to serve as a framework on which a suite of protocols can be built. In this module, you will learn about the popular OSI model and its seven layers.

The TCP/IP model represents a protocol suite. It is similar to the ISO OSI model in that it uses layers to organize protocols. TCP/IP protocols are actively used in actual networks today. In this module, you will learn about the TCP/IP model and the different layers that constitute it.

In this module, you will learn the significance of IP addresses and how routers route packets to their destinations.

IPv4 provides approximately 4 billion unique addresses. Although 4 billion is a large number of addresses, it is not enough to keep up with the growth of the internet. In this module, you will learn about IPv6, which tries to solve the problem of IP exhaustion.

In this module, you will learn about the transport layer and its responsibilities.

Segmentation divides a computer network into smaller parts. The purpose is to improve network performance and security. Other terms that often mean the same thing are network segregation, network partitioning, and network isolation.

One of the most important aspects of wireless operation is how Wi-Fi operates over the air. In this module, you will learn the basics of Wi-Fi technologies, Wi-Fi 6E and 5G.