Final Quiz

Which of the following is a primary objective of data cleaning in Power BI?

• To ensure data accuracy and consistency.
• To reduce data storage costs.
• To enhance data visualization features.
• To increase data redundancy.

Which of these common data quality issues is typically addressed during the data cleaning process?

• Outdated information
• Inconsistent formatting
• Missing values
• Duplicate entries

What is the primary function of the Power Query Editor in Power BI?

• To generate reports automatically.
• To transform and prepare data for analysis.
• To store data in a database.
• To create visualizations directly from data.

In Power Query Editor, which pane allows you to see and modify the sequence of transformations applied to your data?

• Data Preview
• Query Settings
• Applied Steps
• Transformations List

What is the primary purpose of DAX in Power BI?

• To visualize data in charts and graphs.
• The primary purpose of DAX in Power BI is to create custom calculations and aggregations.
• To manage user permissions and access levels.
• To import data from various sources.

What is the main goal of data modeling in Power BI?

• To create a structured representation of data for efficient analysis and reporting.
• To generate random data for testing purposes.
• To store data in a database for future use.
• To visualize data trends without any structure.

Which relationship type in Power BI is generally considered the most complex and potentially problematic, often requiring additional steps to manage effectively?

• One-to-many relationship
• Many-to-many relationship
• One-to-one relationship
• Hierarchical relationship

Which of the following statements best describes a 'calculated measure' in Power BI?

• A calculated measure is a static value stored in the data model.
• A calculated measure is a visual representation of data.
• A calculated measure is a predefined value that cannot be changed.
• A calculated measure is a dynamic value computed using DAX formulas.

Which DAX function is essential for creating powerful calculated measures by modifying filter context?

• FILTER
• CALCULATE
• SUMX
• AVERAGE

In Power BI Desktop, where do you primarily manage and edit relationships between tables?

• Modal Vew

• Modal View

• Model Viw

• Model view