Power BI Quiz

What does data cleaning involve in Power BI?

What is a conditional column used for in Power BI?

• Displaying values based on specified conditions

• Displaying all values in a column

• Renaming column headers based on conditions

• Deleting rows based on conditions

When connecting to a data source in Power BI, which step allows you to transform and shape the data before loading it?

• Data Refresh

• Data Modeling

• Data Extraction

• Data Transformation

What is the primary function of a dimension table in Power BI?

• Store detailed transactional data

• Store descriptive attributes

• Store calculated measures

• Store summarized data

In Power BI, what is the significance of a relationship between tables in the data model?

• It defines how tables are displayed in the report view

• It determines the layout of visualizations

• It enables combining data from multiple tables for analysis

• It controls the formatting of columns

How can you quickly generate a new column in Power BI based on examples of desired values?

• Using the Quick Column feature

• Using the Column Builder

• Using the Column from Example feature

• Using the Quick Create option

Which of the following is NOT a valid method to enhance data visualization in Power BI?

• Adding slicers for filtering

• Using custom visuals

• Applying conditional formatting to visuals

• Embedding external web pages directly into reports

What is the purpose of Power Query in Power BI?

• To create visualizations

• To load and transform data

• To write DAX expressions

• To manage report layouts

Which of the following is NOT a column quality consideration in Power BI?

• Data type

• Column header color

• Data format

• Column name clarity

Which language is commonly used in Power BI for creating calculated columns and measures?

• SQL

• JavaScript

• DAX (Data Analysis Expressions)

• Python