You can edit the questions in an exam that come from a question pool by retracting the exam, making edits, and the republishing the assessment.
Note: It is not recommended to modify an assessment while testing is in progress as it may cause loss of student data.
Note: You can only update the questions in the random draw for an unpublished copy. Questions in an assessment cannot be updated once the assessment is published.
Select the Tests and Quizzes tool from the Tool Menu in your site.
Remember, you can only update the questions in the random draw for an unpublished copy of the assessment, since updating the question pool is essentially changing the questions included in the exam. See How do I edit a published assessment? for more information on retracting and republishing assessments.
In order to update the pool questions attached to an assessment, you will need to edit the Draft exam. If you need to edit the pool questions themselves, see What is a question pool?
Next to the draft assessment, click on the Actions dropdown. Then click on Edit.
Select the Update Questions button in the part containing questions from the question pool. This will update your assessment to include recent changes made to items within the question pool. (The date when the questions were generated is included for your information, so that you can determine whether or not your question pool changes were made before or after the question set was generated.)
If you need to make any changes to the number of pool items selected, or the point settings for the pool, select Edit next to the part containing questions from the question pool.
Here you can update the question type, randomization options, and scoring options. For more information, see How do I set up a random question set?