1. Power BI Part A
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Questions and Answers

What type of chart is best used to show the relationship of parts to a whole?

  • KPI
  • Line chart
  • Pie chart (correct)
  • Map
  • In Power BI, what aggregation should be used for text fields when creating visuals?

  • Count (correct)
  • Latest
  • Sum
  • Median
  • Where can you create a relationship between two tables in Power BI Desktop?

  • Data section
  • Model section (correct)
  • Filters section
  • Report section
  • Which type of view in Power BI is specifically rendered on Power BI mobile apps?

    <p>Phone view (D)</p> Signup and view all the answers

    Where should you collaborate with others to build visualizations in Power BI?

    <p>Workspace (B)</p> Signup and view all the answers

    What is the correct way to add a calculated column in a Power BI report?

    <p>Open the report using Power BI Desktop, select the Data tab, and then choose New column (B)</p> Signup and view all the answers

    Which feature can only be created in Power BI Service?

    <p>Dashboards (D)</p> Signup and view all the answers

    What type of calculation is a 'Measure' in Power BI?

    <p>An equation created on the dataset (A)</p> Signup and view all the answers

    When creating a Power BI report for an investor meeting, which visualization should you use to present last year's revenue?

    <p>Bar Chart (A)</p> Signup and view all the answers

    Which tool should you use to add a calculated column in a Power BI report for a customer acquisition analysis?

    <p>New column option in Power BI Desktop (B)</p> Signup and view all the answers

    Flashcards

    Pie Chart

    A visualization that shows the relationship of parts to a whole. Think of a pie where each slice represents a different category.

    Line Chart

    A visualization that displays a series over time, showing how data changes over a period. Useful for tracking trends.

    Map

    A visualization that associates quantity information to locations. Think of a map with different colors or sizes representing values.

    KPI

    A measure that shows the progress towards a goal. Think of a speedometer showing how close you are to your target speed.

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    Text Data Aggregation

    The process of combining text data into distinct categories and counting the occurrences of each category.

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    Creating Relationships in Power BI Desktop

    The process of creating connections between tables in Power BI Desktop based on common fields, enabling data analysis across tables.

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    Phone View

    The view specifically designed for mobile apps, optimizing the dashboard layout for smaller screens.

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    Workspace

    A collaborative environment in Power BI for building datasets, reports, and dashboards with others.

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    Visualization

    A visual representation of data, like a bar chart or a line chart, that can be added to a dashboard to display insights.

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    Q&A Feature

    A feature that lets you ask questions in natural language about your data and generates visualizations based on your query.

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    Study Notes

    Power BI Visualizations

    • A pie chart is used to show the relationship of parts to a whole.
    • A line chart is used to display a series over time.
    • A map is used to associate quantity information to locations.
    • A KPI is used to show the progress towards a goal.

    Aggregating Text Data in Power BI

    • Power BI aggregates text data as distinct categories and counts the occurrences of each category.
    • The "Count" aggregation should be used to aggregate text data.

    Creating Relationships in Power BI Desktop

    • Relationships between two tables in Power BI Desktop can be created from the "Data" section using the "Manage relationships" option.
    • Relationships can also be created from the "Model" section using the "Manage relationships" option.

    Creating a Power BI Dashboard for Mobile Apps

    • The "Phone view" should be edited to create a Power BI dashboard for mobile apps.

    Collaborating with Others in Power BI

    • Workspaces are used to collaborate on building content for Power BI, including datasets, reports, and dashboards.
    • A workspace must be used to collaborate with others.

    Displaying Sales Revenue in Power BI

    • A bar chart should be used to display the sales revenue for the top fifteen product categories.

    Creating a Dashboard in Power BI

    • A visualization can be pinned to a new or existing dashboard to create a dashboard containing tiles for individual visualizations.
    • The Q&A feature on the dashboard can be used to ask a question about the data and generate visualizations that can be pinned to the dashboard.

    Adding a Calculated Column in Power BI

    • To add a calculated column, the report should be opened using Power BI Desktop.
    • The "Data" tab should be selected, and then "New column" should be selected.

    Power BI Service vs Power BI Desktop

    • Dashboards and Workspaces can only be created in the Power BI service.
    • Reports can be created in both Power BI Desktop and Power BI service.
    • Measures can only be created in Power BI Desktop.

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