Milestones test your mastery of the concepts taught in the course. Each Milestone consists of 20-30 questions on average. You have a set amount of time to complete each Milestone, which is displayed on the Course Dashboard. The amount of time you have to complete a Milestone is determined by a number of factors and is not the same across all courses.
While there is no minimum required score on Milestones, keep in mind that you need to achieve an average score of 70% across all coursework. Also note that Milestones are weighted three times as much as Challenges when calculating your final score. You will be given one opportunity to retake each Milestone to improve your score.
Each Milestone has a corresponding Practice Milestone that you can use to check your readiness before attempting the actual Milestone. You’ll find similar questions to the actual Milestone, along with answers.