hello as

I hope you are doing good . I would like to know you that this is not such a big deal to think on . Their meaning behind that statment is at one end with primary device , on inviligator will check through back end if camera is open or not ,their is no head rotation and the other end through inviligator will tell you the insructions mark the attendance and will montior you or help you if you any query till the completion of exam .

Hope you found this answer helpful. Good luck for your future