Meta Data Scientist interview questions

Had an intro call with a recruiter. Proceeded to a first round interview with a Data Scientist at facebook where we went over a sql coding question and another more metrics related question. The final round (remote on-site) consisted of 4 interviews. The recruiter sent over prep materials which were representative of the interviews.

Scheduled my first introduction phone call. Asking unexpected technical, programming, and product analysis questions through the first phone calls. Questions including: how to determine the best friends across Facebook users, and SQL-related questions.