Given a table containing date, post_id, relationship (e.g. Friend, Group, Page), interaction (like, share etc.) and a table containing poster id and post id, calculate: how many likes were made on friend posts yesterday
Scientist Interviews
Scientist Interview Questions
"The questions you are asked in an interview for a position as a scientist will depend greatly on field of science you intend to work in. Generally, interviewers will be interested in your formal education, field of study and specialization, work, internship, and research experience, scientific writing skills, and interest in the subject matter. Expect to be asked technical questions that pertain to the knowledge needed to perform the duties of the job. While there are some positions open to scientists who possess associates' or bachelors' degrees, most jobs will require you to have at least a masters' degree with the majority requiring you to have a doctorate."
54,373 scientist interview questions shared by candidates
Interviewer asked me a question related to strings that required recursive dynamic programming algorithm.
Basic SQL (don't remember specif question)
Our teams have developed an algorithm to detect spams and classify them at the bottom of the newsfeed. How to check if it works? If it's profitable?
How to analyze the network on Facebook,
I'm not allowed to share
How to identify close friends on social media?
Using a hypothetical schema from the portal product, identify the number of unique active users for a given country on a given day.
Q: Saying FB has only Comment and Like. How you would build an experiment to check if other emotions bottom can be added? (care, sad exc.). How you would build an A/B test?
SQL - joins, group by, date manipulation Business case - a mix of open ended questions framed like "how would you see if xyz is a good idea" and more specific questions about metric movements and experimentation
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