TikTok Developer interview questions

Self introduction. 2 simple questions about my experience. Then jump to leetcode question. No question description. Nothing, just the verbal description. You need to get clarification from the interviewer in the way.

Interviewer started with intro and then it's 30mins of technical questions. For example, why does slow query occur and how to solve these kind of problems. What are some of the benefits of indexing? Benefits of GraphQL? Solution to the N+1 problem? Then it's a leetcode medium