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When Meta had solely 'Comment' and 'Like' functionalities, how might you design a test to assess the incorporation of additional emotive reactions such as 'care' or 'sad'? What's your strategy for formulating an A/B test in this case?

What has been your biggest achievement so far.

Why are you looking for a job at the moment?

What is a CNN? Where is it relevant?

What would you do to improve Walmart if you were hired for Data Scientist?

How do the nested SELECT statements and the WITH clause work in SQL?

Can you create a Conway's Game of Life simulator with Python coding?

I want to know about a project you are really proud of.

How would you go about finding the unique communicators from a SQL table of messages that contains id, sender_id, receiver_id, and message columns?

You are given an array of integers, and you are asked to determine the subarray of length k with the maximum possible sum. How would you approach this task?