As a homework service, Quest is entirely capable of supporting online homework, learning modules (with lecture videos embedded), and exams remotely.
Exams can be constructed by selecting 'learning module' as the assignment type, and then selecting 'test mode'. You can enter in a specific amount of time students will have, and if you'd like, a window in which they will have to complete the assignment. Snapshots of a proctoring video feed will be offered to instructors to uphold academic integrity concerns. Please email questhelp@austin.utexas.edu for more information on this front.
Pooling questions together is also a possibility to ensure that students don’t have the same exam.