If a password appears in a D2L quiz that you do not remember intentionally adding, it may be a result of using a password manager.
When building or editing a quiz, the optional Password field appears on the Restrictions tab. Many password managers, including the popular LastPass, do not know the difference between this password field and the D2l login password field. As a result, your password manager may auto-fill the quiz password field with your D2L password.
The only workaround to prevent the auto-add is to disable autofill in LastPass.
After you have disabled autofill, remember to remove the unwanted password:
You can read more about using D2L Quizzes in our Quizzes guide.