Altera Software Product Engineer (FPGA Design Flow) interview questions

I applied online at Altera website, got an email for initial HR interview on the phone after 1 week. It was only for 10 minutes. They asked about my previous experience and asked me tell a good debugging story. Later got an email in 2 days for on-site interview at Altera Toronto office. It was with 2 engineers, half an hour each. They were both friendly and didn't talk much about my past experiences or stuff on resume, jumped right into technical stuff first asked about my master's thesis and algorithm/code design questions.