I do not know what they ask them but when I did my citizenship test, there was a line up for passport check outside the room where the citizenship test would be held. The judge was sitting in that room and the 55 and older were called out of the line to go in to see the judge. The door was open but it was too far away for me to spy what they were saying. However, they did not seem to be asked many questions and it seemed to be a very friendly interchange.