I visited the TripAdvisor booth at the UIUC Engineering Employment Expo. The team was friendly and allowed interested individuals to sign up for a walk-in interview the next day. So the next day I went and sat in the waiting room till I was called. I walked into a room with an interviewer and sat down with him. He first asked some general questions about my interests and any questions I'd have for their company. Then we dove into the meat of the interview. The technical question was about Binary Search Trees, defining its components (Root node with 2 children nodes, a left and a right, that expands recursively and contains leaf nodes at the bottom level). The questions were conceptual and doable. Then he asked me to go to the whiteboard for a programming exercise. He asked me to create a function that would sum all the elements in the binary tree and return them. Overall the interview was quality and not too difficult.