These were just questions for a position as Associate Product Marketing Manager. During my senior-year interviews with Google for a Software Engineer position, there were 3 rounds, each getting increasingly harder, chock full of nothing but technical questions: some trivia (name all standard network port associations), some implementation (design a chat server), some theory (what is the big-O runtime advantage of doubling an array size upon copy over just adding new entries linearly), etc, etc...
Each time they said "this interview will take about 30 minutes," but each one ended up being around 1.5 hours.
It was grueling, but fun. I'm not sure what happened because I didn't hear back after the 3rd interview. It was at least a nice feeling to know that all of my classes in school had helped me with the answers.
Have you considered interviewing again (I'm assuming some time has passed)? I think its usually a pretty good sign when interviews go long. I think it might be worth your time. Feel free to email me if you'd like.
I have actually been contacted twice since then by Google for subsequent openings (once in the past couple of weeks!). I am currently working on my startup, but I will certainly keep this option open in the future.
Each time they said "this interview will take about 30 minutes," but each one ended up being around 1.5 hours.
It was grueling, but fun. I'm not sure what happened because I didn't hear back after the 3rd interview. It was at least a nice feeling to know that all of my classes in school had helped me with the answers.