Meta Data Scientist interview questions

The interview process was unbelievably long and redundant. Over 3 months, in total, I think I had 4 phone screens, ~10 on-site interviews (across 2 separate days). Many were fairly redundant and covered the exact same areas. It came across as formulaic and bureaucratic. The recruiters I talked to, while fairly responsive, constantly over-promised how quickly we could advance to the next step of the process. I ended up taking another offer before hearing the final decision.

One-to-one Skype interview with manager in US. Discuss experience, skills (stats, data analysis), then walked through how one would test a new feature added to a product (e.g. Messenger) and what variables to explore. Then an online coding exercise with a shared screen (coderpad.io) about processing some data using SQL or another language.