This course is designed for novice programmers, entry level engineers and newcomers to Web Development who want to learn or revise the basic concepts related to computer networks.

The course is intended to be a refresher that can be completed in 10 hours.

Introduction to Computer Networks (ICN)

<ul><li>The TCP/IP protocol suite also known as a DARPA model&nbsp; </li><li>Compared to OSI model, it is much simpler.</li><li>It is actually a suite of protocol but gets its name because of the two more popular protocols TCP and IP </li><li>There are 4 distinct layers in the TCP/IP reference model: </li></ul><ul><ul><ul><li>Application</li><li>Transport</li><li>Internetwork</li><li>Network Interface and Hardware</li></ul></ul></ul>Some of the well known protocols of TCP/ IP protocol stack will be discussed in the next section.

TCP

TCP/IP Protocols

UDP

TCP vs UDP

Networks

What happens when you type a URL in the browser to access a website ?

Internet Protocol IPv4

Internet Protocol IPv6

HTTP

TCP/ IP Protocol Stack