Dumb Components
Dumb components are also presentational components which rarely have states to manage since they're just to show data on DOM. You can consider any basic ui elements to be a dumb component. Such as, buttons, tabs, switches, etc.
Smart Components
Smart components are also called container components and they act as data warehouse or data store whose work is to provide data or behavior to the dumb components and therefore they have states to manage.
You can read more about them in detail here.