Create a course with a student. Create a quiz using " Immediate feedback " as " Question behaviour " and all the questions in same page ( Layout ). Add at least 2 questions to the quiz (don't use " Description " type questions). In the " Edit quiz " page, block at least 1 question, You can do it by clicking the lock icon at the right of the question. As the student, create a new attempt in the quiz. Don't answer any question. Please remember the attemptid , you'll need it later. Enable "Mobile services": Plugins ► Web Services ► Mobile Create a Token for the student: Click on Site administration ► Plugins ► Web services ► Manage tokens Next, you can do a CURL REST call simulating a WS client with the student user. You need to replace the wstoken, attemptid and the URL of your moodle instance. curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'attemptid=1&page=0&wsfunction=mod_quiz_get_attempt_data&wstoken=5b6154a56566a194f60f7f395f235179' Note, you can use jsonlint.com to validate and format the json returned string or append "| python -m json.tool" to automatically format the command output. Confirm that the questions have a " blockedbyprevious " field. Confirm that blocked questions have it set to true, while non-blocked ones have it set to false.