With the Enable snapshots feature, the quiz takers will be monitored using their webcam, by taking snapshots at regular intervals (every 30 seconds).
To enable camera monitoring:
Go to Proctoring under the Configure tab.
Enable the Enable snapshots switch.
Click on Save changes.
Snapshots will be taken at regular intervals while people attempt the quiz. These snapshots will be shown to you in the Submissions section under the Results tab.