1.What is a Switch? A switch is a device in a computer network that connects other devices together. Advantages of Switches: They increase the available bandwidth of the network. They help in reducing workload on individual host PCs. They increase the performance of the network. Disadvantages of Switches: Following are the disadvantages of Switches: ➨ They are more expensive compare to network bridges. ➨Network connectivity issues are difficult to be traced through the network switch. ➨Broadcast traffic may be troublesome. ➨If switches are in promiscuous mode, they are vulnerable to security attacks 2.What is a HUB? Hubs are networking devices operating at a physical layer of the OSI model that are used to connect multiple devices in a network. They are generally used to connect computers in a LAN. Advantages of HUBS: Hub is that the central point of networking device t hat connects multiple hosting devices to one network. It...