Mobile terminal test question distributing and answering method based on MQTT (message queuing telemetry transport) protocol

The invention discloses a mobile terminal test question distributing and answering method based on a MQTT (message queuing telemetry transport) protocol. The method includes that a teacher sends test question information in a JSON (JavaScript object notation) format through a teacher side in mobile terminal, and the test question information is distributed to student sides in the mobile terminal through a MQTT server; after receiving test questions, the student sides answer the test questions and send results to the teacher side through the MQTT server, and the teacher scores the answer results of students after receiving the same. By the method, in the process of test question distributing and answering, if the test questions or the answer results are in a picture format, the test questions or the answer results need to be uploaded to a special file server or downloaded from the same; related data generated in the process of test question distributing, answering and evaluating are all uploaded to a special d