Network Design is the process of planning and creating a network infrastructure that meets the needs of an organization. It involves determining the layout of hardware, such as routers and switches, and how they will connect to each other. The goal is to ensure efficient data flow, security, and scalability. A well-designed network considers factors like the number of users, types of devices, and the required bandwidth. It also includes planning for future growth and potential issues, ensuring that the network can adapt to changing demands while maintaining performance and reliability.