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D2L Quiz Submissions - Instructor Setup
The "View Restrictions" date establishes the time after which the quiz submission views will become available to students taking the quiz.
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If there are multiple attempts allowed, the earlier grade can be replaced by a higher grade, depending on the quiz options set for multiple attempts. (Overall Grade Calculation)
D2L has a minor bug in the "Attempts" selector within quiz submissions. If the Instructor chooses an attempt for a particular submission view, the instructor must also include a min score and max score. This can be Min Score - 0 and Max Score - 100. If these are left empty, the submission view will not function. Min and Max score stipulations are not necessary if the Attempt selector dropdown is left at N/A.