If you want to check the answers, go through the
test one question at a time, then hit finish and grade.
There is a problem with the test though. I had to answer the first 2 questions, before I got the message "You got 100% for 1 out of 1."
Since I had to answer 2 questions to see this, there appears to be a small problem with the code, but it still is a great resource that someone(s) have made for us.
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If you love me, you will visit docs.opensimplatform.org
(FYI, Getting it tattooed on is a bit much.)