Why Quant? Why Optiver? How your manager evaluate you? How was the project yo do?Is there anything can be improved? They would ask you to make a market on a random object, you have to give the bid and ask price. And they would ask you some basic prob questions like what is the probability that you got 50 head If you toss a coin 100 times? In about 10 secs. Finally they will give you a scenario of sport lottery, you should observe the rule and find the way to arbitrage.