D. Answer the following questions: 1. What is the significance of a network? 2. Briefly explain the different parts of a network. 3. What is difference between wired and wireless network? 4. Describe the types of topologies that a network can use. 5. Why is the security of a network necessary? Define the two different types of securities.
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1]These lands were called iqta and their holder was called iqtadar or muqti. Muqtis led military campaigns and maintained law and order in their iqtas. In exchange for their military services; the muqtis collected the revenues of their assignments as salary.
2]A network has 5 basic components viz. clients, servers, channels, interface devices and operating systems. Clients: Client is the computer used by the users of the network to access the servers and shared resources (such as hard disks and printers). So, a personal computer is a client.
3]A wireless network allows devices to stay connected to the network but roam untethered to any wires. A wired network uses cables to connect devices, such as laptop or desktop computers, to the Internet or another network.
4]In computer networks, there are mainly two types of topologies, they are: Physical Topology: A physical topology describes the way in which the computers or nodes are connected with each other in a computer network. Logical Topology: A logical topology describes the way, data flow from one computer to another.
5]Network security is important for home networks as well as in the business world. Most homes with high-speed internet connections have one or more wireless routers, which could be exploited if not properly secured. A solid network security system helps reduce the risk of data loss, theft and sabotage.
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