The Certified ScrumMaster® (CSM®) test has 50 multiple-choice questions with a passing score of 74%. You'll have two attempts within 90 calendar days after you receive your initial welcome email to take the test at no cost. After two attempts and/or 90 calendar days, you'll be prompted to pay 25 USD for each attempt.
If you've already passed the CSM test, you won't be able to take it again to receive a better score. Please note that your test score is only accessible to you; your trainer or other Scrum Alliance® members aren't able to see how you performed on the test.