Power BI is a business intelligence and analytical tool developed by Microsoft in 2013. Initially, the intelligence function was limited to the Excel add-ons. In late 2013, the Microsoft team decided to integrate those add-ons and develop an autonomous BI tool. The establishment of Power BI has been a key contributor to Microsoft’s growth in the BI industry. It has three primary formats:

  • Power BI service
  • Power BI desktop
  • Power BI mobile app

With the help of these three formats, you can construct a data-driven visualization at ease. In today’s world Power, BI is the essential element of the data-driven tech industry. Through the proper knowledge of Power BI, you can land your hands on a great opportunity. Today we will be looking at the top 5 questions asked in a Power BI interview.

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Top 5 Power BI questions

What is Power BI?

Power BI is a Business Analytics and intelligence tool that converts raw data to useful information with a visualized end product. Users can create dashboards and interactive reports to share on numerous platforms. Through this highly visualized and segmentized information, a user can make important decisions.

Why is Power BI an efficient solution?

Power BI is a coherent setup to transform the data into meaningful information. With its easy-to-use interface, anyone can extract data with no prior technical grasp. The cloud system facilitates the users to share the report with others and make collective decisions. Moreover, the various tools allow you to create a dashboard with limited actions or voice commands in the case of Power Q&A. Hence many small business owners can oversee their business without spending much time.

Building blocks of Power BI?

The building blocks of the Power BI are:

  • Datasets: Bundle of data that Power BI uses to generate a visualized summary.
  • Visualization: Data in a visual format.
  • Report: Group of visualization present on one or more pages.
  • Dashboard: Combined presentation of multiple visualizations.
  • Tiles: An individual visualization.

How is data stored in Power BI:

Data is stored in two types of tables; facts or dimension tables.

The Fact table is the main table where the data to be analyzed is stored. At the same time, the dimension table stores the dimensions or attributes regarding the facts. 

What are the major components of the Power BI?

  • Power Query: It allows you to extract and delete data from various sources.
  • Power Pivot: It is a modeling tool that employs DAX (Data analysis expression) for calculations. It also discovers and portrays relationships between tables.
  • Power Map: It provides geographical processing of the data and its sources.
  • Power View: It is a demonstration tool for displaying the data extracted.
  • Power Q&A: Natural language

Good luck for your next Power BI interview, in hope that you’ll find this blog helpful!