The state of tests offer a very easy 5 question with 4 answer method. This however can be simply retook over and over and cause the person who passed to forget what they learned.
I suggest adding a total of 15-25 questions with multiple points, and introduce broader applications to the standards and rules. Have the missed answers explain why the answers are wrong and define them for less experienced people.
Screenshots can be done regardless, but repetition helps people to absorb information. Maybe have it to be redone monthly.