A Dynamic Host refers to a computer or device that can change its network address or configuration automatically. This is often managed through protocols like DHCP (Dynamic Host Configuration Protocol), which assigns IP addresses to devices on a network dynamically, allowing them to connect and communicate without manual configuration. Dynamic hosts are essential in modern networks, especially in environments with many devices, such as home networks or corporate networks. They help optimize resource use and simplify network management by ensuring that devices can join and leave the network seamlessly while maintaining connectivity.