Respondus LockDown Browser is a custom browser that locks down the testing environment within the course management system. When you use LockDown Browser you are unable to print, copy, go to another URL, or access other applications. Once your quiz or assignment is started, you are locked into it until you submit it for grading. Your instructors will tell you if and when to use Respondus and give you specific instructions on how to use it. The video and slide show on this page will give you additional information on this tool.