This is the network model which was designed to implement the content delivery network. It can be seen that the primary means of access to content for the student will be by wireless access points at each distance learning centre. Another means of accessing the content will be through the use of edge servers placed within the local mobile provider networks. In general, a network diagram is a graphical representation of a computer or telephone network. It depicts the network's components and how they interact, such as routers, devices, hubs, firewalls, and so on.