🚀 PowerBI Interview Questions Recently Asked at an MNC:

1️⃣ What are the limitations of using Direct Query connection mode reports?

Direct Query connects your Power BI report directly to the live data source, but it comes with some limitations. Here’s a simplified explanation:

➡️ Slower Performance
Every report interaction sends a query to the data source, causing delays.
Example: Imagine asking a librarian for every book you need, instead of having the books already with you.

➡️ Limited Features
Some advanced Power BI features aren’t supported in Direct Query mode.
Example: A basic calculator can’t perform complex scientific functions like specialized software.

➡️ Dependent on Source
Report performance depends entirely on the data source’s speed and availability.
Example: If the library (data source) is slow or closed, you can’t access your books (data).

➡️ Complex Queries
Handling complex calculations can be difficult or slow.
Example: Solving advanced math on a basic calculator takes time and effort.

➡️ Security and Access Issues
Direct Query relies on the data source’s security settings, which may limit access.
Example: If the library restricts access to rare books, you’ll face similar limitations.

💡 Key Takeaway: Direct Query ensures real-time data but can be slower, less flexible, and depends heavily on the data source’s performance and security.

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