Final answer:
A network designer designs a plan for a network by following a design process that includes gathering requirements, developing a detailed design, and implementing the plan.
Step-by-step explanation:
A network designer designs a plan for a network by following a design process. The first step is to gather requirements by understanding the needs and goals of the network. This involves assessing the number of users, types of devices, and desired network services.
The next step is to develop a detailed design, which involves determining the network architecture, selecting equipment and protocols, and creating a network diagram. Finally, the designer implements the plan by configuring the network devices, testing connectivity, and ensuring security measures are in place.