Data Scientist interview questions.

Prepfully has 582 interview questions asked from Data Scientist candidates.

Coding
How can you determine the shortest subarray that meets or exceeds a target sum from a given integer array, using a greedy algorithm?
Data Scientist
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Google

Coding
What steps would you take to program the search for the most extended incremental subarray using dynamic programming?
Data Scientist
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Meta

ML System Design
How would you design the Google chat system to handle previous chat history? Would you store the entire chat history for each conversation, or only a portion of it? What data structure would you use to store the chat history?
Data Scientist
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Google

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Meta

Analytics Case
Tell us how you would estimate how much fake news is there on Facebook. How would you estimate its impact?
Data Scientist
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Google

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Meta

Behavioral
How do you go about earning trust in a team?
Data Scientist
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Google

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Meta

ML Knowledge
Do you know how to mathematically calculate precision and recall scores in a classification problem?
Data Scientist
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Meta

Behavioral
Which database technologies are you familiar with? Are you familiar with what Meta frequently uses?
Data Scientist
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Meta

SQL
Would you walk me through your approach for calculating the rolling average of a metric over a time span?
Data Scientist
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Amazon

System Design
How would you design a Google system to process a large amount of unstructured data from multiple sources?
Data Scientist
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Google

ML System DesignProduct Case
How would you design a recommendation system for Amazon customers, considering that a single customer may use many devices to logon to a single account?
Data Scientist
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Amazon

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