Simply put, proctors administer exams by monitoring students while they take exams to ensure the student is following the rules of the exam.  In the case of online exams, proctors are also expected to enter the exam password so the student can access the exam.  They scan and return paper and pencil types of exams.   Proctors must be unbiased individuals who, in general, have no personal association or affiliation with the student(s) they proctor.