There are no technical questions whatsoever. I held the PhD presentation about a software / data engineering project for two chemists.. I can recommend for the IQ test to just perform well, you might get screened for CV at this stage. In the pre recorded interview have a quality microphone + quality camera. For the case: spend at least 6-8 hours studying it. Ask yourself questions and scenarios that they could come up with about the case. Treat it like some sort of exam because that is pretty much the setup, you will be talking for one hour straight while you get a question every now and then.