topic computer networks and cyber security(i need answer for assignment with text reference and list reference)(should be phara pharese)

Q1 In a local area networks using Ethernet technology, there may be switches, bridges and routers. (a) Explain the difference between a switch and a bridge. (6 marks)

(b) Why are switches generally preferred to bridges except for the smallest networks? (6 marks) (c) How do routers operate differently from switches? (4 marks)