Teradata interview questions

Written test contains question on all the core computer knowledge including operating systems, data structures, linux, databases, c language In the second round they asked some logical questions which I could not remember. In the next round here are some questions which I remember Write a code for inter-thread communication. Write a javascript code to verify the data from the database.

Interviewer was insincere and unprepared. The process was insulting, disrespect and demeaning. It was a video call, however thr interviewer was late, didn't bother to adjust the camera, and unapologetic. The whole 30 mins felt as a passing interview for hidden agenda.