Power BI Online Test

The Power BI test evaluates candidate's ability to build data models, select and execute appropriate visualizations, create dashboards to explore data and answer queries, publish and share insightful reports and run analytics using DAX language in Power BI.

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Screen candidates with a 25 mins test

Test duration: 25 mins

Difficulty level: Moderate

Availability: Ready to use

Questions:

15 Power BI MCQs

Covered skills:

Connecting to data sources and importing

Data wrangling and transformations

Data models

DAX formulas

Themes and visualization

Interactive reports

Publishing and sharing

Power BI Desktop

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The Power BI Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Connecting to data sources and importing
Performing data wrangling and transformations
Creating and optimizing data models
Writing effective DAX formulas
Designing visually appealing themes and visualizations
Building interactive reports
Publishing and sharing reports
Utilizing Power BI Desktop efficiently

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How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this Microsoft Power BI Test will be non-googleable.

🧐 Question
Medium Data Filtering Report Development M Language Data Visualization	Solve
You are creating a Power BI report where users need to dynamically filter data based on a range of dates. The report has a Sales table with columns Date, ProductID, and Amount. You decide to use a Power Query parameter to allow users to select a start and end date, which will then filter the Sales table accordingly. The parameter is named DateRange and has a type of List. You need to write a Power Query M formula to filter the Sales table based on the selected date range. The DateRange parameter contains two dates: the first item is the start date, and the second item is the end date. How should the M formula be structured to achieve this functionality? A: Table.SelectRows(Sales, each [Date] >= DateRange{0} and [Date] <= DateRange{1}) B: Sales{[Date] >= DateRange{0}, [Date] <= DateRange{1}} C: Table.FilterRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) D: Table.SelectRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) E: Filter.Table(Sales, [Date] >= DateRange{0}, [Date] <= DateRange{1})
Medium Many-to-one error Data Modeling	Solve
Consider the following two tables in Power BI: We received the following error when we tried to set many-to-one cardinality between devices to users tables: “The cardinality you selected isn’t valid for this relationship”. What should we do before creating the many-to-one relationship?
Medium Power Query Functions Power Query	Solve
Review the following Microsoft SQL Server table: Complete the following Power Query formula used to create a custom column to replace the numbers present in last 11 characters of ISBN with 11 ‘’. Example ‘978-0-365-51051-4’ is converted to ‘978-0--**-’ A: Text.Insert B: Text.Replace C: Text.Start D: Text.End

	🧐 Question	🔧 Skill
	Medium Data Filtering Report Development M Language Data Visualization	2 mins Power BI	Solve
You are creating a Power BI report where users need to dynamically filter data based on a range of dates. The report has a Sales table with columns Date, ProductID, and Amount. You decide to use a Power Query parameter to allow users to select a start and end date, which will then filter the Sales table accordingly. The parameter is named DateRange and has a type of List. You need to write a Power Query M formula to filter the Sales table based on the selected date range. The DateRange parameter contains two dates: the first item is the start date, and the second item is the end date. How should the M formula be structured to achieve this functionality? A: Table.SelectRows(Sales, each [Date] >= DateRange{0} and [Date] <= DateRange{1}) B: Sales{[Date] >= DateRange{0}, [Date] <= DateRange{1}} C: Table.FilterRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) D: Table.SelectRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) E: Filter.Table(Sales, [Date] >= DateRange{0}, [Date] <= DateRange{1})
	Medium Many-to-one error Data Modeling	2 mins Power BI	Solve
Consider the following two tables in Power BI: We received the following error when we tried to set many-to-one cardinality between devices to users tables: “The cardinality you selected isn’t valid for this relationship”. What should we do before creating the many-to-one relationship?
	Medium Power Query Functions Power Query	2 mins Power BI	Solve
Review the following Microsoft SQL Server table: Complete the following Power Query formula used to create a custom column to replace the numbers present in last 11 characters of ISBN with 11 ‘’. Example ‘978-0-365-51051-4’ is converted to ‘978-0--**-’ A: Text.Insert B: Text.Replace C: Text.Start D: Text.End

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Data Filtering Report Development M Language Data Visualization	Power BI	Medium	2 mins	Solve
You are creating a Power BI report where users need to dynamically filter data based on a range of dates. The report has a Sales table with columns Date, ProductID, and Amount. You decide to use a Power Query parameter to allow users to select a start and end date, which will then filter the Sales table accordingly. The parameter is named DateRange and has a type of List. You need to write a Power Query M formula to filter the Sales table based on the selected date range. The DateRange parameter contains two dates: the first item is the start date, and the second item is the end date. How should the M formula be structured to achieve this functionality? A: Table.SelectRows(Sales, each [Date] >= DateRange{0} and [Date] <= DateRange{1}) B: Sales{[Date] >= DateRange{0}, [Date] <= DateRange{1}} C: Table.FilterRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) D: Table.SelectRows(Sales, each [Date] >= List.First(DateRange) and [Date] <= List.Last(DateRange)) E: Filter.Table(Sales, [Date] >= DateRange{0}, [Date] <= DateRange{1})
	Many-to-one error Data Modeling	Power BI	Medium	2 mins	Solve
Consider the following two tables in Power BI: We received the following error when we tried to set many-to-one cardinality between devices to users tables: “The cardinality you selected isn’t valid for this relationship”. What should we do before creating the many-to-one relationship?
	Power Query Functions Power Query	Power BI	Medium	2 mins	Solve
Review the following Microsoft SQL Server table: Complete the following Power Query formula used to create a custom column to replace the numbers present in last 11 characters of ISBN with 11 ‘’. Example ‘978-0-365-51051-4’ is converted to ‘978-0--**-’ A: Text.Insert B: Text.Replace C: Text.Start D: Text.End

Test candidates on core Power BI Hiring Test topics

Connecting to data sources and importing: This skill involves the ability to connect Power BI to various data sources such as databases, spreadsheets, and online services, and import data into Power BI. It is important to measure this skill in the test to ensure that candidates are proficient in gathering data from different sources, a crucial step in creating insightful Power BI reports.

Data wrangling and transformations: This skill focuses on the ability to clean and transform data within Power BI, including tasks such as filtering, sorting, merging, and shaping data. Testing this skill ensures that candidates can effectively manipulate data to meet the requirements of their analysis and reporting.

Data models: This skill involves creating efficient and optimized data models within Power BI, including defining relationships between tables, creating hierarchies, and setting up measures. By measuring this skill, recruiters can evaluate a candidate's understanding of how to structure data for optimal performance and analysis in Power BI.

DAX formulas: This skill assesses a candidate's knowledge of using the Data Analysis Expressions (DAX) language in Power BI to create calculated columns, measures, and other calculations. DAX formulas are essential for performing complex calculations and aggregations in Power BI, making it crucial to measure this skill in the assessment.

Themes and visualization: This skill focuses on the ability to apply visual themes and create visually appealing and effective visualizations in Power BI. It is important to measure this skill as it ensures that candidates can design and present data in a visually appealing and meaningful way, enhancing the user experience of Power BI reports.

Interactive reports: This skill measures a candidate's proficiency in creating interactive reports in Power BI, including using features such as drill-through, bookmarks, and report navigation. Testing this skill ensures that candidates can create dynamic and user-friendly reports that allow for effective data exploration and analysis.

Publishing and sharing: This skill assesses a candidate's ability to publish and share Power BI reports with others, including sharing reports through the Power BI service, embedding reports in other applications, and managing permissions. Measuring this skill ensures that candidates are familiar with the process of making their Power BI reports accessible and shareable to stakeholders.

Power BI Desktop: This skill covers the overall proficiency of a candidate in using the Power BI Desktop application, including tasks such as creating and editing reports, managing data connections, and implementing advanced functionalities. With Power BI Desktop being a central tool for Power BI development, it is crucial to assess a candidate's proficiency in this area.

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