DAX Online Test

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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

Hard
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.

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

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13 more premium DAX questions

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

Skills and topics tested

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

For job roles

  • Data Analyst
  • Power BI Analyst
  • Power BI Developer

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