35 What is 3 tier Architecture? * Enter your answer 36 What are the different level of Abstraction? * Enter your answer 37 Part C - Answer all questions (10* 2 = 20 marks) Network topology is the topological structure of a network and may be depicted physically or logically. It is an application of graph theory wherein communicating devices are modelled as nodes and the connections between the devices are modelled as links or lines between the nodes. Explain the network topologies with the help of diagrams. Enter your