U S Hybrid interview questions

They seemed to be very disorganized. They kept asking to interview me, but forgot the interview time and asked to reschedule. The second time they forgot the interview time I just said forget it.

No phone interview. Ask me to be onsite. I live not too far away. Drive to their Torrance facility. No body really talk to me. Throw me into their meeting room, close the door and give me an exam paper, ask me to answer questions. No previous notice said there will be an exam. I feel I went back to my college time. There are so many functions I couldn't remember but simple to google. In the end, I told the Korean CTO I wasn't prepared for the exam. He looked at me and said you should always be prepared for an exam. YOU SHOULD ALWAYS BE PREPARED FOR AN EXAM. I was so shocked by his theory that I don't even remember how I went home.