Microsoft 70-778 Actual Free Exam Questions & Community Discussion

  • Exam Code/Number: 70-778
  • Exam Name/Title: Analyzing and Visualizing Data with Power BI
  • Certification Provider: Microsoft
  • Corresponding Certification: Microsoft Power BI
  • Exam Questions: 155
  • Updated On: May 27, 2026
You plan to use Power BI Desktop to import 100 CSV files.
The files contain data from different stores. The files have the same structure and are stored in a network share.
You need to import the CSV files into one table. The solution must minimize administrative effort.
What should you do?
Correct Answer: C Vote an answer
Explanation: Only visible for EduDump members. You can sign-up / login (it's free).
You have a table that contains a column named Phone. The following is a sample of the data in the Phone column.
You need to add a new column that contains the data in the format of nnn-nnn-nnnn.
How should you complete the Query Editor formula? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Correct Answer:

Explanation

References:
https://docs.microsoft.com/en-us/powerquery-m/text-replace
https://docs.microsoft.com/en-us/powerquery-m/text-end
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a query for a table named Sales. Sales has a column named CustomerlD. The Data Type of CustomerlD is Whole Number.
You refresh the data and find several errors. You discover that new entries in the Sales table contain nonnumeric values.
You need to ensure that nonnumeric values in the CustomerlD column are set to 0.
Solution: From Query Editor, select the CustomerlD column. Click Replace Errors... and enter a value of 0 Does this meet the goal?
Correct Answer: A Vote an answer
In the Power BI service, you create an app workplace that contains several dashboards.
You need to provide a user named [email protected] with the ability to edit and publish dashboards.
What should you do?
Correct Answer: A Vote an answer
Your organization has a team of power users who recently created 20 Power BI dashboards.
The power users share the dashboards with other users in the organization.
When the users attempt to access the dashboards, they receive the error message shown in the exhibit. (Click the Exhibit.)

You need to ensure that all the users can access the dashboards.
What should you do first?
Correct Answer: B Vote an answer
Explanation: Only visible for EduDump members. You can sign-up / login (it's free).
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have an app workspace that contains a report. The report contains sensitive data.
You need to ensure that you can embed the report into a custom application that will be accessed by external users. The external users will NOT have a Microsoft Azure Active Directory user account or Power BI licenses.
Solution: From Publish to web, generate an iFrame.
Does this meet the goal?
Correct Answer: B Vote an answer
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a Power BI model that contains two tables named Sales and Date. Sales contains four columns named TotalCost, DueDate, ShipDate, and OrderDate. Date contains one column named Date.
The tables have the following relationships:
The active relationship is on Sales[DueDate].
You need to create measures to count the number of orders by [ShipDate] and the orders by [OrderDate]. You must meet the goal without duplicating data or loading additional data.
Solution: You create a calculated table. You create a measure that uses the new table.
Does this meet the goal?
Correct Answer: B Vote an answer
You have a query that retrieves data from a Microsoft Azure SQL database.
You discover that column named ErrorCode has several values starting with a space character, and a column named SubStatus contains several non-printable characters.
You need to remove all the leading whitespaces from ErrorCode and all the non-printable characters from SubStatus. All other data must be retained.
What should you do on each column? To answer, drag the appropriate tasks to the correct columns. Each task may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Correct Answer:

Explanation

References:
https://msdn.microsoft.com/en-us/library/mt260494.aspx
https://msdn.microsoft.com/en-us/library/mt253328.aspx
You create a new app workspace. You add a user named Userl1 as a member of the workspace. Userl1 can edit content.
You plan to create a report in an app workspace that uses data from a Microsoft Azure SQL database.
You need to create the report. The solution must ensure that Userl1 can edit the report from Power BI Desktop and from powerbi.com.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Correct Answer:

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Start of repeated scenario.
You have a Microsoft SQL Server database that has the tables shown in the Database Diagram exhibit. (Click the Exhibit button.)

You plan to develop a Power BI model as shown in the Power BI Model exhibit. (Click the Exhibit button.)

You plan to use Power BI to import data from 2013 to 2015.
Product Subcategory[Subcategory] contains NULL values.
End of Repeated Scenario.
You implement the Power BI model.
You plan to add a table named Date to the model. The table will have columns for the date, year, month, and end of the last month, and will include data from January 1, 2013 to December 31, 2015.
The Date table and the Sales table will have a relationship.
Which DAX functions should you use to create the columns?
Correct Answer: B Vote an answer
Explanation: Only visible for EduDump members. You can sign-up / login (it's free).
You have the datasets shown in the following graphic.

Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
Note: Each selection is worth one point.
Correct Answer:

Explanation

References:
https://docs.microsoft.com/en-us/power-bi/service-real-time-streaming
http://radacad.com/integrate-power-bi-into-your-application-part-6-real-time-streaming-and-push-data
You have a Power BI model for sales data. You create a measure to calculate the year-to-date sales.
You need to compare the year-to-date sales with the previous year for the same time period. Which DAX function should you use?
Correct Answer: A Vote an answer
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have an app workspace that contains a report. The report contains sensitive data.
You need to ensure that you can embed the report into a custom application that will be accessed by external users. The external users will NOT have a Microsoft Azure Active Directory user account or Power BI licenses.
Solution: Configure the app workspace to be read-only for members and to run in a shared capacity.
Does this meet the goal?
Correct Answer: B Vote an answer
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