Python is the most widely used language in data science interviews. Expect questions like “What are Pandas and NumPy used for?” or “How do you handle missing data in a DataFrame?” You may be asked to write quick snippets or explain the output of code. Strong Python skills are critical, especially in preprocessing, data manipulation, and building models. Practice coding challenges and ... https://www.scholarhat.com/tutorial/datascience/data-science-interview-questions-and-answers