I am not actually through the entire interview process yet.

I submitted my application and within two weeks, I received a request for a technical telephone interview. I passed the first telephone interview and had another one the week after that.

I also passed the second technical interview and will now be flying to Boulder, CO next week.

Does anyone have any insights on what may be asked, or what I can study besides reading through Glassdoor and the "Programming Interviews Exposed" book?

Asked a lot of questions about my resume.

Write code in C that would hash a string and deal with collision resolution by implementing a linked list. Would this code be thread-safe?