Power BI Interview Questions for Entry-Level Data Analysts (Easy-Medium Difficulty) 📊

1. What is Power BI, and how does it fit into the data analysis workflow?

2. Difference between Power BI Desktop and Power BI Service?

3. How to import data into Power BI? What are the various data sources supported?

4. Explain the process of transforming data in Power BI. Which tools or features would you use for data cleaning?

5. What is data modeling in Power BI, and why is it important?

6. How would you create relationships between different tables in Power BI?

7. Explain cardinality and its significance?

8. Describe the steps to create a basic report/dashboard in Power BI?

9. What are best practices for creating effective visualizations in Power BI?

10. What is DAX, and why is it used in Power BI?

11. DAX formulas to calculate a new measure or column?

12. How does data refresh work in Power BI? What options are available for scheduling data refreshes?

13. Process of publishing a Power BI report to the Power BI service?

14. If a Power BI report is loading slowly, what steps would you take to identify and rectify the issue?

15. How do you optimize Power BI reports for better performance?

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