Build Simulated Exam

Hello - I am new to the Articulate producet and community.  What a wonderful resource.  I'm sure what I need has been done before.  I searched around a bit but didn't find what I was looking for.  I would like to build a simulated, timed exam in which all questions are answered and then scored at the end when the student is ready or after the allotted time has ended.  Students can then click on a list of either correct or incorrect answers and review the feedback.  I created the exam questions and created the scoring features and timing.  The problem I'm having is reviewing feedback for questions after the exam is completed.  Any help would be appreciated.  Thanks!