AMD Sr. Design Engineer interview questions

HR from AMD sent mail in my linkedin profile 1)Telephonic discussion for an hour 2) 2 rounds of technical discussion each for 1.5 hrs 3) HR round with salary negotiation All question are from design though the position is from verification engg I got call from HR after 3 days of F2F interview and negotiated for salary. I had got AMD job 2 years back and I declined. She was asking me about the reason