Post #2423

✅15 Power BI Interview Questions for Freshers 📊💻 1️⃣What is Power BI and what is it used for? Answer: Power BI is a business analytics tool by Microsoft to visualize data, create reports, and share insights across organizations. 2️⃣What are the main components of Power BI? Answer: Power BI Desktop, Power BI Service (Cloud), Power BI Mobile, Power BI Gateway, and Power BI Report Server. 3️⃣What is a DAX in Power BI? Answer: Data Analysis Expressions (DAX) is a formula language used to create custom calculations in Power BI. 4️⃣What is the difference between a calculated column and a measure? Answer: Calculated columns are row-level computations stored in the table. Measures are aggregations computed at query time. 5️⃣What is the difference between Power BI Desktop and Power BI Service? Answer: Desktop is for building reports and data modeling. Service is for publishing, sharing, and collaboration online. 6️⃣What is a data model in Power BI? Answer: A data model organizes tables, relationships, and calculations to efficiently analyze and visualize data. 7️⃣What is the difference between DirectQuery and Import mode? Answer: Import loads data into Power BI, faster for analysis. DirectQuery queries the source directly, no data is imported. 8️⃣What are slicers in Power BI? Answer: Visual filters that allow users to dynamically filter report data. 9️⃣What is Power Query? Answer: A data connection and transformation tool in Power BI used for cleaning and shaping data before loading. 1️⃣0️⃣What is the difference between a table visual and a matrix visual? Answer: Table displays data in simple rows and columns. Matrix allows grouping, row/column hierarchies, and aggregations. 1️⃣1️⃣What is a Power BI dashboard? Answer: A single-page collection of visualizations from multiple reports for quick insights. 1️⃣2️⃣What is a relationship in Power BI? Answer: Links between tables that define how data is connected for accurate aggregations and filtering. 1️⃣3️⃣What are filters in Power BI? Answer: Visual-level, page-level, or report-level filters to restrict data shown in reports. 1️⃣4️⃣What is Power BI Gateway? Answer: A bridge between on-premise data sources and Power BI Service for scheduled refreshes. 1️⃣5️⃣What is the difference between a report and a dashboard? Answer: Reports can have multiple pages and visuals; dashboards are single-page, with pinned visuals from reports. Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c 💬React with ❤️ for more!