Exams help every teacher to understand the mental capacity of the students and to rectify their shortcomings. In turn it helps the students to perform and think as the way it should be done.
So I think exams are important, and every student has to pass them.

-Exams assist the individuals in broadening knowledge.
-Create competition
-Scholarships and a bright future
Practical exams make a student confident
Benefits In Memory Improvement
Increased knowledge

Exams can energize students, rendering them motivation to learn things they would otherwise continue putting off. Exams produce the incentive to make students look back over what they have already incorporated in order to verify that they really understand it. Exams encourage students to find methods of understanding and remembering information without having to study it up.