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Power BI 70-778 - Exam Review Questions with Complete Solutions
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Power BI 70-778 - Exam Review Questions with Complete Solutions How can you schedule a data refresh in Power BI Service? By setting up a scheduled refresh in the dataset settings. What does a "relationship" in Power BI define? The connection between tables based on common fields. What...

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  • November 11, 2024
  • 27
  • 2024/2025
  • Exam (elaborations)
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Power BI 70-778 - Exam Review
Questions with Complete Solutions
How can you schedule a data refresh in Power BI Service?


✔✔ By setting up a scheduled refresh in the dataset settings.




What does a "relationship" in Power BI define?


✔✔ The connection between tables based on common fields.




What is the advantage of using a slicer in a report?


✔✔ It allows users to filter data interactively.




What kind of data can be imported into Power BI?


✔✔ Data from Excel, SQL Server, and various online sources.




How does Power BI handle data security for dashboards?


✔✔ By applying row-level security to restrict data access.




1

,What is the purpose of the "Drill Down" feature in Power BI?


✔✔ To explore deeper levels of data within a visual.




What can you use the Power BI "Q&A" feature for?


✔✔ To ask natural language questions and generate visuals.




What does the “Refresh” button in Power BI Desktop do?


✔✔ It updates reports with the latest data from the data source.




How can you optimize a Power BI report for performance?


✔✔ By reducing the number of visuals and using aggregations.




What is a measure in Power BI?


✔✔ A DAX formula used to perform calculations on your data.




What is the use of the "Append Queries" option in Power Query?


✔✔ To combine rows from two or more tables into a single query.




2

, How can you share your Power BI reports with others?


✔✔ By publishing them to the Power BI Service.




What is the function of "Conditional Formatting" in Power BI?


✔✔ To change the appearance of visuals based on data values.




Why would you use the "Merge Queries" feature?


✔✔ To combine data from two tables based on a related field.




What is a calculated column in Power BI?


✔✔ A column created using DAX expressions to add data to your tables.




How can you limit data access to specific users in Power BI?


✔✔ By using row-level security to restrict data visibility.




What is the purpose of the "Bookmarks" feature in Power BI?


✔✔ To save report states for easy navigation.




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