Walk me through how you would clean and validate a new datas... | Interview Question
BeginnerTECHNICALTEXT
Walk me through how you would clean and validate a new dataset before starting analysis.
Data Analyst
General
Sample Answer
This is based only on the stated role of Data Analyst, the general industry, the mid-level screening context, and the default focus on general data analysis work.
Related Keywords
What checks would you run first?How would you decide whether to remove, impute, or keep missing values?How would you document the cleaning steps?
Tips for Answering
Demonstrate depth of technical knowledge
Think aloud — explain your reasoning process before diving into the solution.
Clarify constraints and requirements before answering. Ask clarifying questions.
Discuss trade-offs between approaches. Show you understand real-world engineering.
Mention edge cases, performance considerations, and how you would test your solution.