Google Software Engineer, Recent Graduate interview questions

Initially, I was asked to answer a survey and to do some timed basic programming questions online. The survey was pretty lengthy with a variety of questions while the programming exercises were rather straight forward. I was scheduled a technical phone interview a few days after I completed these. My technical interview seemed to have a focus on knowing and understanding algorithm complexity, and your coding abilities. You can ask whoever is interviewing you questions. To what extent, I don't really know. At one point, I felt the interviewer was somewhat annoyed at me for asking questions. I also couldn't hear the interviewer a lot of the time because they were talking at a distance from their phone.