The interview process was quite easy for internship, first interview was with the HR and the second round was with the head of departments, I think the head of departments choose if they want you in their team or not.
I applied online and received an online interview, they asked behavioural questions and tell me about yourself or something like tell me a time that you worked as a team, it was not difficult
It is an online interview. You've got time to practice. Do it before the deadline. For the practice quesiton you have unlimited attempt, for the actual interview only once chance allowed.