What are the different parts of an exterior door and how do they contribute to its overall functionality and security?

An exterior door typically consists of a frame, hinges, lockset, and weatherstripping. The frame provides structural support, the hinges allow the door to swing open and closed, the lockset secures the door, and the weatherstripping helps to keep out drafts and moisture. Each part plays a crucial role in the door's functionality and security by working together to provide stability, ease of use, and protection against intruders and the elements.