The signal interference device in the exam room is designed to prevent unexpected situations from occurring during the exam. In order to prevent people from carrying some mobile phones or electronic devices to cheat during exams, as well as high-tech cameras and transmission devices, the school will set up a small signal interference device for the exam. In every exam venue, there is a signal interference device for this type of exam. Once the relevant signal blocking devices are activated, although these electronic devices can continue to be used, they can only be in a state without internet connection and cannot communicate with the outside world. In comparison to some important large-scale exams, in order to prevent various factors from occurring and ensure the authenticity of each person's exam. We can only adopt such a high-tech approach to achieve comprehensive avoidance.

Before entering the examination room, the invigilator will strictly inspect the items that students carry with them, including mobile phones and other electronic communication devices. Because learning is the determining factor in most people's lives, many people value the results after exams. If people cheat in major exams, they will be held accountable. If a group engages in cheating activities, the police will choose to arrest the group, impose certain criminal penalties on them, and even cancel their grades. So, the reasonable use of the signal interference device in the examination room can promote the continuous and orderly conduct of the exam.