Real Data Science Interview Questions

Below is a list (in no particular order) of real interview questions I have either asked, been asked, or saw asked in a real interview. While everyone has their own take on interview advice, mine is pretty clear cut. Answer the question, nothing more nothing less. Don’t get caught up in the trap of trying to add too much detail. Unless specifically asked for more detail, the interviewer more often than not just wants to make sure you have a grasp of the concepts.

1. Explain the difference between Regression and Classfiers:

Click here for answer

2. What does ETL stand for?

Click here for answer

3. What is the difference between a data warehouse and a transactional database

Answer is coming

4. Name 3 ETL tools

Answer is coming

5. Explain Probability vs Odds

Click here for answer

6. What are the basic elements or parts for writing SQL queries?

Click here for answer

7. Explain supervised versus unsupervised machine learning

Answer is coming

8. Explain the difference between a left join and an inner join

Answer is coming

9. What is ensemble modeling?

Answer is coming

10. What is a confusion matrix?

Answer is coming

11. What is DDL vs DML

Click Here for Answer

2 thoughts on “Real Data Science Interview Questions

  1. Pingback: Real Data Science Interview Questions: Question 1 – Analytics4All

  2. Pingback: Data Science Interview Questions: Parts of a SQL Query – Analytics4All

Please Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s