At the end of each study path, you can decide to take a certification quiz in order to check that you have mastered all the concepts covered.
These certification quizzes draw questions from the entirety of the study path you wish to certify. Each quiz lasts about 30 minutes and is scored out of 100 points. At the end of the quiz, you will get a score out of 100, which will appear on the page. You must obtain a score of 100/100 in order to validate the certification.
Note: Despite its value, this is not an official certification that can be presented as part of a formal application. However, it is absolutely possible to include it on your CV.