This course examines communications and network security. It covers the different types of networks and different transmission technologies and the two main models that govern how networks work, the OSI model and the TCP/IP model, and their related layers. This course also features a number of fictional scenarios that will help you apply what you've learned to situations you may encounter in the real world. This course requires a basic understanding of IT concepts. $119 For more information or to register please register through this site and then an email will be sent to you with a link to register for the class.