PART B: Tick one or more correct answers for each of the following: (1 mark each) 1. All nodes are connected to each other in which of this topology a. Star b. Ring c. Mesh d. Bus 2. Which of the following types of networks are typically owned, controlled and managed by a single organization/person a. LAN b. MAN ?. WAN 3. For which of the following layers, their domain of duty is the Internet a. Physical b. Network c. Application d. Transport e. Data link 4. The layers contained in a link layer switch are a. Transport b. Physical c. Network d. Data Link e. Application