Google process as always is pretty swift. Recruiters are very helpful, ask them a lot of questions if you are going for an interview. They are there to help you in each step. It took a week before I received a feedback after my "onsite" interview. All is well on my first technical interview but got so distracted on my onsite which I believe that caused my interview to fail. The questions are pretty generic if you are an admin. Study all the basics on how a VM/containers work, a Linux OS works, how a web works, python scripts. The questions are all average(not too hard, not too easy). also be precise on your troubleshooting skills. Soft skills are also very important on this role!!