Power BI Quiz

What is the primary goal of Business Intelligence (BI)?

• Turn raw data into actionable insights

• Store data in spreadsheets

• Secure data with encryption

• Automate all business processes

Which type of analytics answers "Why did it happen?"

• Diagnostic Analytics

• Descriptive Analytics

• Predictive Analytics

• Prescriptive Analytics

Which of these is **not** a core component of Power BI?

• Power Script

• Power Query

• Power Pivot

• Power View

In Power BI, which building block is a single visualization on a dashboard?

• Tile

• Dataset

• Report

• Workbook

What does DAX stand for?

• Data Analysis Expressions

• Data Aggregate X-functions

• Digital Analytics eXchange

• Dynamic API eXtension

Which Power BI feature lets you clean and transform source data before analysis?

• Power Query

• Power Map

• Power View

• Power Pivot

A limitation of the free Power BI tier is:

• 1 GB per-dataset size limit

• No visualization options

• No export to PDF

• No support for Excel data

In the fraud-detection case study, what step comes **after** Exploratory Data Analysis?

• Modeling

• Sampling

• Data Preprocessing

• Deployment

Which visualization type is best to show fraud vs. non-fraud proportions?

• Donut (or Pie) Chart

• Line Chart

• Scatter Plot

• Heatmap

Why is Power BI preferred over Excel for dashboards?

• Real-time data refresh and interactive visuals

• Fewer chart types

• Requires no learning

• Only works offline