Optiver Hackerrank Test

So I received a Hackerrank test link from Optiver recruiter which has a duration of 2 days. I haven't yet started the test. The test says it would have MCQs and coding questions. Any recommendations for what topics I can study for MCQs? Or anyone who has given the test recently, can you tell what type of questions did they ask? #optiver #swe #software #hft