Microsoft Software Development Engineer interview questions

Dropped my resume at school career fair. They had some engineers on campus to interview students. Got an email a week later for on-campus interview. Two rounds of interviews, with two interviews in the second round. After that, they flew me to Seattle for the on-site interviews. I got two on-site with two different teams, the interviewers were the hiring managers so they were able to give hiring decisions in the same day. After the interviews, they took us for a campus tour then lunch and then they told us the result.

In one of questions, I was asked how many lines of code I've done in a biggest single project. I never thought of that. I just made a guess, but it turned out way too wrong. So be prepared for this question.