Interview was more like a rapid fire.
First half on big data, second half on Java-Spring related questions
They seem to come with a written set of questions (since it was via webex, I could not see them)
They give a few seconds to answer, if not move to the next questions, answer as many as you can.
No doubt, it was one of the toughest interview I have given in recent times.
They would not ask much about your experience, they just want to get answers for their scripted questions, so you will not be driving the process. Be better prepared.