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Why Python? 45 Questions to test a data scientist on basics of Deep Learning (along with solution) Commonly used Machine Learning Algorithms (with Python and R Codes) 40 Questions to test a data scientist on Machine Learning [Solution: SkillPower – Machine Learning, DataFest 2017] Top 13 Python Libraries Every Data science Aspirant Must know! Explain the difference between data and information . It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Reveal Answers. I learned SQL back in 1992 as a DBAdmin and user. Data Science Interview Questions and Answers for Placements. Many Data Aspirant started learning their Data Science journey with Python Programming Language. 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