Introduction to Layers in a Network and Routing

This free online course Introduction to Layers in a Network and Routing Next begins by using animation scenarios of how the application layer ensures that the entire web page is sent from the web server to your computer. You will also study about software called wireshark that allows tyou to capture live internet traffic. 

Next you will cover the most essential part of a simulation software called the Cisco packet tracer that provides a virtual experience of working with actual network devices and a playground for you to experience networking. You'll learn about the concept of layering and different layers in a network and their functions. 

Finally, the course demonstrates what a router is and how routers exchange packets.You'll also be able to recognize different types of encryption and how to code and decode using different keys. Start this course, and you will gain an indepth knowledge of layering, addressing, and the Cisco packet tracer.