It's easy to limit exactly who can access your Tests or surveys in ClassMarker.
Groups:
When assigning tests or surveys to groups, you can control when and how many times they can be taken.
Only members you register into a Group can access the Test/s - surveys/s you have assigned to that Group.
Links:
When assigning via Links, you can set exactly when and how many times a Test/survey can be taken, as well as select password protection.
You can use a common password for all users, or you can create an Access List, which allows you to create unique codes (one for each user), which they will use to access your Test or survey. Learn more about Access lists.
IP Restrictions:
Set IP Restrictions across both Groups and Links to limit access from specific locations.
View more Settings available to you when assigning Tests/surveys.