I applied online. I interviewed at University of Cambridge in Jan 2019
Interview
Started out easy with some questions about my interests and why I applied for this specific department. Later they asked some more difficult questions about the research topic that I initially struggled with. However, they gave me pointers and enough time to think for me to come up with reasonable guesses.
Interview questions [1]
Question 1
What of our departments research interests you?
How do your previous experiences make you qualified for this line of work?
I had a online meeting (30min) with potential supervisor and another professor in the department. They asked details about my research plan and feasibility, and etc.. You need to prepare to answer to detailed questions
I interviewed at University of Cambridge (Cambridge, England)
Interview
Very easy, just a casual chat with the prof.
Asked me about my experience and what I want to do.
Asked what papers from the lab I had read.
Asked about funding I'd applied for.
30 minutes interview with standard questions such as motivation and your future plan. Good to read few academic papers that are relevant and not relevant to your field. Be prepared to talk about it.