Completing all 10 quizes in this series with minimum 50% marks per quiz and an aggregate of not less than 70% for the quiz series will award you a certificate of excellence. You will get only 1 chance per quiz to submit the answers. Once you have submitted the answers, you wont be able to edit the same. So make sure to utilize that chance carefully. Make sure to use the same email id when attempting quizzes. Else, it may lead to certificate rejection.