Meta Data Scientist interview questions

It was a good interview and many data science and product questions were asked. A young data scientist took it and she was inexperienced. Are you knowing this was a common test

HR screening -> 1 Hr technical screening with company's other data scientists -> Onsite (4 rounds in total, with 1 hour break in the middle. it's pretty intense overall. Be prepared before interview. HR usually send out the prep materials before interview )