DAX Online Test

Test real-world DAX skills that matter in a world with AI. Protected by AI proctoring.

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About the test

The DAX online test assesses knowledge of using DAX for Power BI reports. 

The assessment includes work-sample tasks such as:

  • Creating Power BI reports using DAX.
  • Using proper DAX formulas.
  • Using measures to calculate results from DAX formulas.

A good Power BI developer needs to be able to write DAX expressions, create calculated columns, measures, and custom tables from data that is already in the model.

Sample public questions

Easy
5 min
fill
Public
Power BI
DAX

​A business owner needs a Power BI report which shows the projected quantity for each item. The "quantity" column is in the "items" table.

Fill in the blank of the following DAX expression for a new column that will compute the projected quantity, which is the current quantity plus 12%: 

Projected Quantity = ______________ * 1.12
Easy
5 min
mca
Public
Power BI
DAX
Measure

A Power BI report has a measure declared as:

Profit percentage = SUM(financials[Profit]) / CALCULATE(SUM(financials[Profit]), ALL(financials))

Select all the true statements if the "Profit percentage" is used as a value in a bar chart where Country is the axis.

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16 more premium DAX questions

Query Join, Sale Discount, Modifying Profit, Profit Chart, Regional Report, Daily Profit, Sales Share, Agent Performance, Marketing Performance Report, Grocery Sales, Book Sales, Net Adds, Average Sales, Sales per Product, Device Purchases, Beverage Sales.

Skills and topics tested

  • Power BI
  • Power Query
  • DAX
  • Chart Configuration
  • Drilldown
  • Slicer
  • Interactive Dashboards
  • Video
  • Bug Fixing
  • Row-Level Security
  • Data Aggregation
  • Data Modeling
  • Data Cleaning
  • Matrix Visualization
  • Performance Tuning

For job roles

  • Data Analyst
  • Power BI Analyst
  • Power BI Developer

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What others say

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Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

G2 - Crowd Badge
G2 - High Performer - Winter (2025)
Capterra - 4.5 Stars
Capterra - Ease of Use (2025)

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