Should I use a Post-Test for a exam to pass an Instructor-Led Course?

Hello,

I am having a hard time understanding the best way to solve the scenario below. Is a Post-Test the solution? If so I am having a difficult time getting the post-test to work for this scenario.

1.) Instructor-Led item is assigned to user

2.) User registers for class

3.) User attends class and instructor marks complete

4.) User needs to complete an exam to Complete item