Exam 70-778 Analyzing and Visualizing Data with Microsoft Power BI

Published: July 31, 2017
Languages: English
Audiences: BI professionals, data analysts
Technology: Microsoft Excel
Credit toward certification: MCSA

Skills measured
This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area on the exam. The higher the percentage, the more questions you are likely to see on that content area on the exam. View video tutorials about the variety of question types on Microsoft exams.

Please note that the questions may test on, but will not be limited to, the topics described in the bulleted text.

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Consume and Transform Data By Using Power BI Desktop (20-25%)
Connect to data sources
Connect to databases, files, folders; import from Excel; connect to SQL Azure, Big Data, SQL Server Analysis Services (SSAS), and Power Query
Perform transformations
Design and implement basic and advanced transformations, apply business rules, change data format to support visualization
Cleanse data
Manage incomplete data, meet data quality requirements

Model and Visualize Data (45-50%)
Create and optimize data models
Manage data relationships, optimize models for reporting, manually enter data, Use Power Query
Create calculated columns, tables, and measures
Create DAX queries for calculated columns, tables, and measures
Create performance KPIs
Calculate the actual, calculate the target, calculate actual to target
Create hierarchies
Use date hierarchies, use business hierarchies, resolve hierarchy issues
Create and format interactive visualizations
Select a visualization type, configure page layout and formatting, setup visual relationships, configure duplicate pages, handle categories that have no data, setup default summaries and categories, position, align, and sort visuals, enable and integrate R visuals, format calculated measures
Manage custom reporting solutions
Use Power BI API, use Microsoft Power BI Embedded, enable developers to create and edit dashboards through custom applications, enable developers to embed dashboards in applications, authenticate a Power BI web application, enable developers to create custom visuals

Configure Dashboards in the Power BI Service (25-30%)
Configure a dashboard
Connect to the Power BI service, publish connections to services by using SQL Server Analysis Services (SSAS), publish visualizations including dataConfigure a dashboard, add text and images, filter dashboards, configure dashboard settings, customize the URL and title, enable natural language queries
Publish dashboards
Publish to web, publish to Microsoft SharePoint, publish to SQL Server Reporting Services (SSRS)
Configure security for dashboards
Create a security group by using the Admin Portal, share dashboard with users or security groups, integrate with Microsoft OneDrive for Business, configure row-level Security, configure gateways
Configure organizational content packs and apps
Create a content pack, publish a content pack, edit a content pack, package dashboards and reports, configure app workspace

 


 

QUESTION 1
You have the following two queries in Power BI Desktop:
• A Query named Query 1 that retrieves a table named SM8_ Customers from a Microsoft SQL Server database
• A query named Query2 that retrieves a table named Enterprise, Customers from an Oracle database
Both tables have the same columns.
You need to combine the data from SMB_Customers and Enterprise_Customers.
Which command should you use?

A. Combine Files
B. Merge Columns
C. Merge Queries
D. Append Queries

Answer: C

 


 

QUESTION 2
You embed a Power BI report in a Microsoft SharePoint Online page.
A user named User1 can access the SharePoint Online page, but the Power BI web part displays the following error message: “This content isn’t available.”
User1 is unable to view the report.
You verity that you can access the SharePoint Online page and that the Power BI report displays as expected You need to ensure that Uses 1 can view the report from SharePoint Online.
What should you do?

A. Publish the app workspace
B. Edit the settings of the Power BI web part
C. Modify the members of the app workspace
D. Share the dashboards in the app workspace

Answer: A

 


 

QUESTION 3
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.
Your company has 1.000 users m a Microsoft Office 365 subscription
A Power BI administrator named Admin 1 creates 20 dashboards and shares them with 50 users.
You discover that a user named User1 can access all the dashboard-.
You need to prevent User 1 from accessing all the dashboards
Solution: From Microsoft Azure Active Directory, you remove the Power BI license form User1.
Does this meet the goal?

A. Yes
B. No

Answer: A

 


 

QUESTION 4
You have a Power 61 report that displays a bar chart and a donut chart on the same page. The bar chart shows the total sales by year and the donut chart shows the total sale by category.
You need to ensure that when you select a year on the bar chart, the donut chart remains unchanged
What should you do?

A. Set a visual level filter on the bar chart.
B. Edit the interactions form the Format menu.
C. Set a visual level filter on the donut chart.
D. Add a slicer to the page that uses the year column.

Answer: D

 

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