Hi,

Inside each course there is a quiz section, where you will get few questions related to the topics covered in the course.

If you are looking for over all questions as an exam, i will recommend you can do this sample certification exam, once you complete all the courses:

Odoo Sample Certification Exam: https://www.odoo.com/slides/odoo-certification-sample-test-50

Functional certifications:  https://www.odoo.com/slides/odoo-16-certification-135

Thanks