After a phone screening, I got an on-site interview. There were basically three rounds with three different people on the same day. Each round was geared towards different directions.

• The first round focused on basic algorithms.
• The second was more related to big data.
• The third round was related to object-oriented programming.

I was asked to implement the insertion method for a binary search tree.

In the second round, I was asked how I would deal with large data files. I had no idea how to answer the question. The interviewer was nice and kept explaining his point to me. It was a more general question than I had anticipated; I was thinking of detailed algorithms to solve it. I was also asked why I chose Yahoo. I couldn't think of a very specific reason that was uniquely suitable for Yahoo.