Bloomberg Developer interview questions

Phone call in depth about your past projects, technologies used, difficulties. Why Bloomberg? Then question on what data structure to use with a stock ticker and stock price.Interviewer was helpful and did provide a few hints.

I just described my current status, like I've gradated and am seeking jobs now. Then the HR ask me something about my skills. He let me to pick one of my projects on my resume and asked my to explained the details,like what position was I in the group and what's the meaning of the project. Then I was given a small project to solve, but I failed.