ByteDance

Absolute nonsense. The inexperienced interviewer asked weird questions. The interviewer also seemed extremely exhausted. This could be a good indication of their working culture (the interview was conducted at 2 PM local time).

2 min self-introduction Java HashMap source code JVM and GC Network: TCP TIME_WAIT / differences between TCP and UDP Database: MySQL clustered index / how to prevent phantom read Algorithm: Find longest common substring (15 min)

The interview process involves three rounds, focusing on algorithms and fundamental knowledge. This includes topics such as operating systems, computer networks, and implementation details of common data structures like hashmaps. The interviewer wi