SanDisk interview questions

It’s an open interview I was interviewed by 3 different person First, a woman probably from HR The woman was interested with my skills and invited me to another interview with a manager from manufacturing engineering Second The manager gave me some tough questions about some machine that I stated in my resume such as DSC,SEM and Some quality questions since I told him I learnt quality control Then he ask about my biggest challenge during my assuming Vice President at a club in my university Third I think he is an engineer under the manager. He offered me the job and explained briefly. I accepted the offer.

day 1: 1.5 hours exam. then 2+ hours interview with 2 managers. fair exam and questions. day 2: 1.5 hours extreme technical interview with 2 higher managers day 3: HR interview & proposal.