Untitled Quiz

1. What is the primary purpose of a dashboard in a business context?

• A) To store raw data

• B) To provide at-a-glance visual summaries of key metrics

• C) To replace all manual reporting

• D) To track system performance

2. Which visualization is best for showing trends over time?

• A) Pie chart

• B) Bar chart

• C) Line chart

• D) Bubble chart

3. What is an “outlier” in a dataset ?

• A) A data point that is the most common

• B) A data point located far from other observations

• C) A missing value

• D) A summary statistic

4. Which chart type is effective for comparing values across categories?

• A) Line chart

• B) Bar chart

• C) Scatter plot

• D) Heatmap

5. Why use interactive dashboards?

• A) They require no training

• B) They let users explore different views dynamically

• C) They replace all analysis tools

• D) They are always mobile-friendly

6. What is the main advantage of using a treemap?

A) Shows time series data

• A) Shows time series data

• B) Displays hierarchical data in nested rectangles

• C) Compares two continuous variables

• D) Maps geographic locations

7. What is the significance of pre-aggregation in BI dashboards?

• A) It increases the amount of raw data

• B) It applies complex transformations in the visualization layer

• C) It performs aggregations in the database to improve performance

• D) It reduces the number of visuals

8. Which chart should be used to display distribution and identify outliers?

• A) Pie chart

• B) Box plot

• C) Bubble chart

• D) Gantt chart

9. What is real-time BI?

• A) Historical trend analysis

• B) Reporting on data as it arrives

• C) Monthly summary reporting

• D) BI used only by analysts

10. When designing dashboards for different stakeholder groups, what practice is best?

• A) Use the same visuals for all

• B) Include every available metric

• C) Tailor visuals to each group's goals and priorities

• D) Use as many colors as possible