Are Exams Good or Bad?

Are Exams Good or Bad?

Many people feel stressed before writing the exam. There are many other people who write without any stress. Should the institution conduct exams? Why? In what way Scoring fewer marks will be beneficial? If you are good at any subject, Do you need to read it thoroughly before writing its exam? I was one among the person who used to feel stressed while writing exam, but now I don't feel because I have found a remedy for it..