Question 1

What does the COUNT function do in Power BI?

Accepted Answer

Counts the number of cells within a column, excluding blank values.

Answer

Counts the number of blank cells in a column.

Answer

Calculates the average of a column.

Answer

Adds all the values in a column.

Question 2

How can you fix the error that occurs when dividing zero by a number using DAX?

Accepted Answer

Use the divide function with an alternative result parameter set to zero.

Answer

Use the slash operator (/).

Answer

There is no way to fix this error in DAX.

Answer

Leave the blank cell empty.

Question 3

What is the purpose of nested IF statements in DAX?

Accepted Answer

To create a logical expression with more than two conditions.

Answer

To calculate the sum of multiple columns.

Answer

To define alternative results for the IF statement.

Answer

To add comments to your code.

Question 4

What is the benefit of using the SWITCH function over nested IF statements for complex categorization?

Accepted Answer

The SWITCH function is always faster.

Answer

The SWITCH function is easier to read and maintain.

Answer

All of the above.

Answer

The SWITCH function can handle more categories.

Question 5

What are the two arguments required by the CALCULATE function?

Accepted Answer

The calculation to be performed and the table to perform it on.

Answer

The DAX expression to evaluate and the filter context to apply.

Answer

The column to calculate and the desired output format.

Answer

The measure to be used and the visualization type.

Question 6

In the video, how did Fenan calculate the total sales for large orders?

Accepted Answer

By creating a measure using the CALCULATE function with the total sales measure and a filter on the grouping column for large orders.

Answer

By creating a new calculated column that multiplies quantity by unit price for large orders only.

Answer

By using the SUM function with an IF statement to filter for large orders.

Answer

By filtering the total sales table to show only large orders.

Question 7

Which of the following is NOT a valid comparison operator in a DAX expression?

Accepted Answer

< (less than)

Answer

(or)

Answer

#ERROR!

Question 8

According to the video, what is the most important DAX function to learn?

Accepted Answer

There is no single most important function, as they all serve different purposes.

Answer

The SUM function is the most important because it is used for basic calculations.

Answer

The CALCULATE function is the most important because of its versatility.

Answer

The COUNT function is the most important because it is used frequently.

Question 9

Can the SUM function be used to add text values in Power BI?

Accepted Answer

No, the SUM function can only be used with numerical data types.

Answer

Only if the text values represent dates.

Answer

Yes, the SUM function will automatically convert text to numbers.

Answer

It depends on the format of the text values.

Question 10

What resource did Fenan recommend for learning more about DAX functions?

Accepted Answer

A separate video on her channel about the SUM function.

Answer

An online course on DAX.

Answer

There is no mention of additional resources in the video.

Answer

The Power BI documentation.

Related quizzes

Related quizzes