As a fresher they expect you to know the basics of the technology that is described. If you are being interviewed for machine learning job then they expect you to have a decent cloud background.

Overall a very positive experience: Recruiter (Mara) contacted me after applying online. She was quick to schedule a 30 minute telephonic interview with the hiring manager. The hiring manager asked some questions related to past work. Soon after that, onsite interviews were scheduled at San Mateo office. The interviews lasted about 2 to 3 hours and included coding questions and very specific questions related to my work experience. It was refreshing to see that the interviewers cared about past experience too and did not just do a cursory glance at the resume. Overall the interview experience was very good and people were very friendly. I had one last interview with the SVP next day, and a offer was extended. Due to commute issues, I did not end up accepting the offer. The recruiter and the hiring manager were very understanding of the situation.