What status code does the server send when a request is successful?

The correct status code indicating a successful request is 200. In the context of HTTP, a 200 status code signifies that the server has successfully processed the request and is returning the requested data or the outcome of the action. For example, if a client requests data from a server, receiving a 200 status means that the data is being sent back to the client as requested.

In contrast, other codes indicate different circumstances: a 404 status code means that the requested resource could not be found, a 500 status code indicates a server error where the server encountered an unexpected condition, and a 403 status code means that access to the requested resource is forbidden. Understanding these codes is essential for troubleshooting and ensuring proper data handling in system integrations and web development.