Was immediately asked to take an aptitude test. You were not allowed to use any outside sources, and your interviewer was monitoring your progress silently. You were allowed to ask questions regarding technical difficulties, but not the exam itself.
It contained random bits of mathematics, pattern recognition, and the odd trivia-like questions (like American culture or WWII facts).
After the exam was over, the interview ended without any traditional back-and-fourth correspondence. If there was a secondary interview to cover this part, I did not get the chance to make it past that point.