I received a full-time referral (did not do an internship) and had a phone interview that consisted of two questions. This was followed by three onsite interviews on University Day. Overall, it was a great experience.

For those looking for full-time positions without prior internship experience, I highly advise trying to get a referral. It goes a long way in simply giving you the opportunity to interview.

Heaps, binary trees, DFS/BFS, and dynamic programming.

I forget the individual questions, but my biggest advice would be to purchase the LeetCode membership and start doing the Facebook questions about 3-4 weeks before your first interview. A lot of their questions are reused and can be easily solved with practice.