I was invited to an assessment center where we first had to do a programming and probability maths exam. After this we had a 1:1 interview with a member of the department where we were asked about our answers and got asked more technical questions to do with general computer science knowledge. Afterwards we broke up into groups and had to discuss and present about a case study which was then followed by questions. The final interview of the day was another 1:1 where we were asked general interview questions.