What kind of questions do companies ask in Data Analyst interviews (including Python, SQL, Power BI, and Excel)?

Question

I’m currently preparing for Data Analyst interviews, and I’d love to learn from your experience.

If anyone here has faced real data analyst interviews, could you please share:

1. The types of questions or tasks you were asked

2. Any SQL query or optimization questions

3. Python-based data analysis or Pandas/ Numpy tasks

4. Questions related to Power BI, Excel, or Statistics

Your inputs will really help me (and others) prepare better for upcoming interviews 🙏

Thank you so much in advance!
Sai Kiran

Answer 1

Hello Sai,

I work at DianApps (a leading app development company) and often sit with developers and IT experts. Interestingly, before interviews, even our teams look up online to decide what kind of questions to ask candidates — so it’s always a good idea to explore commonly asked questions and practice them in advance.
Here are a few helpful links you can check out:

https://www.geeksforgeeks.org/data-science/data-analyst-interview-questions-and-answers/
https://www.simplilearn.com/tutorials/data-analytics-tutorial/data-analyst-interview-questions

For the technical rounds, there’s no fixed list of questions since every company has a different approach. Just make sure your basics are clear and you’re confident in explaining your thought process.

Many interviewers focus less on whether your answer is 100% correct and more on how you approach a problem, how logically you think, and how well you communicate your reasoning.

Even if your technical skills have small gaps, companies often believe — “we can train a candidate who shows good effort and problem-solving skills.”

So, go in with confidence and a positive attitude. You’ve got this — all the best for your interviews!

Answer 2

SAI KIRAN TALASILA This is not all-inclusive by no means but you could set up a quiz app and use these as well as add to.

https://sololearn.com/compiler-playground/WIPxFLVtFLgU/?ref=app

Answer 3

SAI KIRAN TALASILA here are 65 questions based on ...

https://www.simplilearn.com/tutorials/data-analytics-tutorial/data-analyst-interview-questions

Answer 4

Hello Sai, all the best for your interview. Hope you will do well in your interview. For general questions the interviewer may ask you:
1. General question:
1. About your project where you used data to solve a problem.
2. How do you handle multiple tasks or datasets at once?
3. Explain a time your analysis helped a business decision.

2. For the SQL question, the interviewer may ask you:
1. Basics, Joins, Aggregates, and common tasks.

3. For Python/Pandas/Numpy questions related to:
1. Data cleaning and manipulation
2. Analysis
3. Numpy/Pandas Operations.
4. Mini Task Example.

4. For Power BI/Excel/Stats questions related to:
1. Power BI/Excel: (filter, slicer and calculated fields)
2. Statistics/Probability.

I hope this will help you.
Mamta Bankoti

Answer 5

Great question, Sai! 👏
From my experience, most Data Analyst interviews mix technical and practical questions. You can expect things like:

SQL: writing queries with JOIN, GROUP BY, HAVING, and optimizing queries for performance.

Python: data cleaning and analysis using Pandas, like finding missing values or aggregating data.

Excel/Power BI: creating pivot tables, using DAX formulas, and explaining how you’d visualize trends or KPIs.

Statistics: basic concepts like mean, median, correlation, and hypothesis testing.

Tip — be ready to explain why you chose a particular approach. Interviewers love hearing your reasoning process! 💡

Good luck with your prep — you got this! 🚀