Top 20 Interview Questions with Answers for Power BI

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1. What is a Power BI dataset? Answer: A Power BI dataset is a collection of data that has been imported or connected to Power BI, and is used as the basis for reports and dashboards. Datasets can be created from various data sources, including Excel files, SQL Server databases, and cloud-based services.
2. How do you create a matrix visual in Power BI? Answer: To create a matrix visual in Power BI, you can use the Matrix visual and define the fields for the rows, columns, and values, as well as any additional fields for formatting and sorting the matrix.
3. What is a data source in Power BI? Answer: A data source in Power BI is the location where data is stored or retrieved from, such as a database, file, or web service. Data sources can be connected to Power BI to create reports and dashboards.
4. How do you create a stacked area chart in Power BI? Answer: To create a stacked area chart in Power BI, you can use the Stacked Area Chart visual and define the fields for the X-axis, value columns, and any additional fields for coloring and labeling the chart.
5. What is a Power BI workspace? Answer: A Power BI workspace is a collaborative environment where multiple users can create, edit, and share reports and dashboards. Workspaces can be used to organize content and control access to data and reports.
6. How do you create a tree map in Power BI? Answer: To create a tree map in Power BI, you can use the Tree Map visual and define the fields for the value, category, and hierarchy, as well as any additional fields for coloring and labeling the chart.
7. What is a Power BI report server? Answer: A Power BI report server is a component of Power BI that allows reports and dashboards to be deployed and accessed on-premises, behind a company’s firewall. Report servers can be used to control access to data and reports, and can be integrated with other enterprise systems.
8. How do you create a funnel chart in Power BI? Answer: To create a funnel chart in Power BI, you can use the Funnel Chart visual and define the fields for the value and category, as well as any additional fields for coloring and labeling the chart.
9. What is a data gateway in Power BI? Answer: A data gateway in Power BI is a component that enables secure data transfer between Power BI and on-premises data sources. Data gateways can be installed on a server or computer in the on-premises environment, and can be used to manage connections and data transfer between Power BI and on-premises data sources.
10. How do you create a gauge chart in Power BI? Answer: To create a gauge chart in Power BI, you can use the Gauge visual and define the fields for the value and range, as well as any additional fields for coloring and labeling the chart.
11. What is a Power BI app? Answer: A Power BI app is a collection of dashboards, reports, and data sources that can be shared with others in an organization or outside of it. Apps can be published to the Power BI service or to a Power BI report server, and can be used to control access to data and reports.
12. How do you create a sunburst chart in Power BI? Answer: To create a sunburst chart in Power BI, you can use the Sunburst visual and define the fields for the value, category, and hierarchy, as well as any additional fields for coloring and labeling the chart.
13. What is a Power BI report theme? Answer: A Power BI report theme is a set of predefined formatting styles and colors that can be applied to a report or dashboard. Report themes can be used to create a consistent look and feel across multiple reports and dashboards.
14. How do you create a bullet chart in Power BI? Answer: To create a bullet chart in Power BI, you can use the Bullet Chart visual and define the fields for the value, target, and performanceranges, as well as any additional fields for coloring and labeling the chart.
15. What is a Power BI template? Answer: A Power BI template is a pre-built report or dashboard that can be customized and reused for different data sources or scenarios. Templates can be created from existing reports or dashboards and shared with others in an organization.
16. How do you create a waterfall chart in Power BI? Answer: To create a waterfall chart in Power BI, you can use the Waterfall Chart visual and define the fields for the category and value columns, as well as any additional fields for coloring and labeling the chart.
17. What is a Power BI mobile app? Answer: A Power BI mobile app is a mobile application that allows users to access and interact with reports and dashboards on their mobile devices. The app can be used to view and share reports, as well as receive alerts and notifications.
18. How do you create a map visual in Power BI? Answer: To create a map visual in Power BI, you can use the Map visual and define the fields for the location, values, and any additional fields for coloring and labeling the map.
19. What is a Power BI bookmark? Answer: A Power BI bookmark is a saved view of a report or dashboard that can be revisited and shared with others. Bookmarks can be used to navigate to specific pages or sections of a report or dashboard, and can be customized with specific filters and selections.
20. How do you create a scatter chart in Power BI? Answer: To create a scatter chart in Power BI, you can use the Scatter Chart visual and define the fields for the X-axis, Y-axis, and any additional fields for coloring and labeling the chart.

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