01In the Drag and Drop API, which event must call `event.preventDefault()` to allow an element to be dropped onto a target?
02What object is used to transfer data between the draggable element and the drop target?
03Which modern API provides asynchronous access to the system clipboard?
04What is a major accessibility concern when implementing a custom drag-and-drop interface?
05Which `DataTransfer` property can be set during `dragstart` to inform the browser (and the user's cursor) whether the item is being copied or moved?
06How can you customize the 'ghost image' that follows the cursor during a drag operation?
07What is the 'User Activation' requirement for the Clipboard API?
08When reading files from a drag-and-drop operation, where are they located in the event object?
09What is the purpose of `ClipboardItem` in the `navigator.clipboard.write()` method?
10Why is it important to 'Throttle' the `dragover` event handler?