ByteDance Backend Software Engineer interview questions

I went for the first round of interviews and the person asked for the experience, and projects I did previously for the first 30 mins. As a backend engineer, he talked about MySQL, Redis, and Java-related knowledge. After that, we went for a coding question.

The process is smooth and good. But i think i am not fully prepared. So i didnt manage to answer all the questions. The interview communicate with mandarin. The hr took about 2 months to reach out to me.