Top 15 advanced Power BI interview questions

1. Explain the concept of row-level security in Power BI and how to implement it.

2. What are calculated tables in Power BI, and when would you use them?

3. Describe the differences between DirectQuery, Live Connection, and Import Data storage modes in Power BI.

4. How can you optimize the performance of a Power BI report or dashboard with large datasets?

5. What is the DAX language, and how is it used in Power BI? Provide an example of a complex DAX calculation.

6. Explain the role of Power Query in data transformation within Power BI. What are some common data cleansing techniques in Power Query?

7. What is the purpose of the Power BI Data Model, and how do relationships between tables impact report development?

8. How can you create custom visuals or extensions in Power BI? Provide an example of when you would use custom visuals.

9. Describe the steps involved in setting up Power BI Gateway and its significance in a corporate environment.

10. What are the differences between Power BI Desktop, Power BI Service, and Power BI Mobile? How do they work together in a typical Power BI workflow?

11. Discuss the process of incremental data refresh in Power BI and its benefits.

12. How can you implement dynamic security roles in Power BI, and why might you need them in a multi-user environment?

13. What are Power BI paginated reports, and when would you choose to use them over standard interactive reports?

14. Explain the concept of drill-through in Power BI, including its configuration and use cases.

15. How can you integrate Power BI with other Microsoft products, such as Azure Data Lake Storage or SharePoint?

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