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Interview quiz track

First 2 free Intermediate Excel

Excel – Data Cleaning

Practice Excel data cleaning interview questions covering removing duplicates, handling blanks, text cleanup, and standardizing data. Answer questions and receive feedback on approach and correctness. Ideal for data analyst and operations interview prep. First 2 questions are free with full feedback.

  • Level Intermediate
  • Questions 12
  • data cleaning

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Sample excel – data cleaning interview questions

Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.

  1. How do you remove duplicate rows in Excel?

    What a strong answer includes

    Uses Remove Duplicates feature.

  2. How do you find and fill blank cells?

    What a strong answer includes

    Go To Special → Blanks, then fill.

  3. How do you trim extra spaces from text?

    What a strong answer includes

    Uses TRIM function.

  4. How do you standardize text case?

    What a strong answer includes

    Uses UPPER, LOWER, or PROPER.

  5. How do you split a column into multiple columns?

    What a strong answer includes

    Uses Text to Columns.

  6. How do you identify outliers in a dataset?

    What a strong answer includes

    Uses sorting, conditional formatting, or formulas.