This article discusses domain settings, including the domain assessment password:
Just to clarify ... does this password apply to COURSES within the domain that contain assessments with passwords, or to USERS within a domain who are trying to take assessments with passwords?
Our summer school courses will all be housed within one domain, but we will have students taking those courses whose accounts live in several different domains. I'm hoping that I can apply a single assessment password to the domain where the courses live and have all students (no matter what their domain) use that password on their assessments. (I know it doesn't sound like it makes sense to give students the domain password, but this is a unique and temporary situation for the summer.)