Google Site Reliability Engineer interview questions

I was contacted by a recruiter asking if i am interested in working at google and scheduled a phone interview.first round is a recruiter screen with basic unix/linux commands which went well.second interview is more technical,it included topics from networking,Tcp/ip protocols,RAID etc,They would dig little deeper as you keep answering.It ended with a writing a program in language of your choice.I chose perl. 3rd phone screen was mostly into Data structures and algorithms which required coding in C or Java. implementation of hash tables and binary trees etc and more of open ended questions.3rd interviewer was hurrying up and did not give much time to think because you fail to answer the first question correctly.Overall it was a good experience.