In the newest version of the assessments module, users are able to keep track of progress on completed questions in an assessment and to input a designation that a question has been answered completely to the best of their ability.
In the old version of the assessments, the questions did not have this feature:
In the newest version of the assessments module, note the ability to mark questions as complete after you select the answer and upload evidence:
The system will warn you if you try to mark a question as complete that does not evidence:
The ability to mark questions as complete ensures one can track their progress as they work through the assessment and signify to other users or admins that questions and sections are finalized and ready for review.