Both primary & secondary documents are required, a complete list of acceptable documents can be found here, IdentificationRequirements_English.pdf (mn.gov). If your name has changed since your birth record, we need that document providing your name change, for example a certified marriage certificate or certified court order. A more complete list of acceptable documents can be found on the State of Minnesota's website.
In addition to the documents you will need to take the written test. A written test is completed at a state exam station. Your documents are also required at the exam station.