IT 224

The course divided into four parts. The first part is an overview. The remaining parts represent the first three layers of the internet model TCP/IP.
-  Part 1:   Overview of data communication and network models  
-  Part 2:    Physical layer of the internet model TCP/IP
- Part 3:    Data link layer of the internet model TCP/IP
- Part 4:   Network layer of the internet model TCP/IP