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Showing posts with the label Power bi interview questions and answers for freshers

Power BI Scenario Based Interview Questions and Answers

Power BI Scenario Based Interview Questions and Answers 1.Scenario: You have been tasked with creating a sales dashboard for a retail company. What visualizations would you include, and how would you ensure the dashboard provides actionable insights? Answer: I would include visualizations such as sales trends over time, top-selling products, geographic sales distribution, and customer segmentation. To ensure actionable insights, I would add interactive filters for date ranges, product categories, and customer segments, allowing users to drill down into specific details and identify opportunities for improvement. 2.Scenario: The CEO of your company wants a real-time dashboard to monitor key business metrics. How would you design and implement such a dashboard using Power BI? Answer: I would utilize Power BI streaming datasets to capture real-time data from various sources such as IoT devices or transaction systems. Then, I would design visuals to display metrics like sales revenue...

Power BI Interview Questions and Answers for Experience.

Power BI Interview Questions and Answers for Experience.  1) What is the difference between Power BI and other BI tools? Answer: Power BI is known for its integration with Microsoft products and ease of use. Unlike some BI tools, it allows for self-service analytics and is scalable from small to enterprise-level solutions. 2) Explain the importance of the star schema in Power BI data modeling. Answer: The star schema is crucial for optimizing query performance in Power BI. It involves creating a central fact table connected to dimension tables, reducing the complexity of queries and improving response times. 3) How does the Power BI data model handle many-to-many relationships? Answer: Power BI uses a bridge table or an intermediary table to handle many-to-many relationships. This table resolves the ambiguity by breaking down the relationship into two one-to-many relationships. 4) What is the role of the Power BI Performance Analyzer tool? Answer: The Power BI Performance Analy...

Power BI Interview Questions & Answers for Freshers

Power BI Interview Questions & Answers for Freshers  1) What is Power BI? Answer: Power BI is a business analytics service by Microsoft that provides interactive visualizations and business intelligence capabilities with an interface simple enough for end-users to create their own reports and dashboards. 2) Explain the components of Power BI. Answer: Power BI consists of three main components: Power BI Desktop (for creating reports and dashboards), Power BI Service (for sharing and collaborating on reports in the cloud), and Power BI Mobile (for accessing reports on mobile devices). 3) What is Power Query? Answer: Power Query is a data connection technology that enables you to discover, connect, combine, and refine data across a wide variety of sources. 4) Explain DAX in Power BI. Answer: DAX (Data Analysis Expressions) is a formula language used in Power BI for creating custom calculations in tables and columns. It is similar to Excel formulas but is designed for use in Power ...