When a user attempting quiz once again he should get the questions which he wrote wrong in his previous quiz but not get all questions .
This belongs in the quiz forum.
The closest thing we have is 'Each attempt builds on last' in the quiz settings. https://docs.moodle.org/28/en/Quiz_settings#Question_behaviour
I place shuffle within questions set to 'yes', but all the questions are displaying not only wrong questions but the questions shuffled
If no plugin or setting not possible in moodle 2.8
Please guide me to customize this action in moodle which files has to edited to get the desired result .