Practice Test
True or False: In Microsoft Power BI, it is not possible to add visuals to your report.
Answer: False.
Explanation: In Microsoft Power BI, you can add various forms of visual elements, including charts, graphs, maps, and much more, to your report to make it more interactive and dynamic.
Which of the following are types of visualizations you can add in a Power BI report?
- A) Maps
- B) Charts
- C) Graphs
- D) Tables
- E) None of the above
Answer: A) Maps B) Charts C) Graphs D) Tables
Explanation: Power BI supports various visualization types like maps, charts, graphs, and tables to represent data in a more engaging manner.
True or False: Each visual in Power BI must be connected to a data model.
Answer: True.
Explanation: Every visual in Power BI is connected to a data model as this model sources the data needed to create the visual.
Power BI visuals can be filtered based on multiple parameters.
- A) True
- B) False
Answer: A) True.
Explanation: One of the functionalities of Power BI visuals is that they can be filtered based on various parameters to provide a more specific data representation.
To create a visual in Power BI, you must first predefine the data model.
- A) True
- B) False
Answer: A) True.
Explanation: The Power BI visual creation process involves first defining the data model that the visual will be based on.
The tab that contains the visualization pane in Power BI interface is titled:
- A) View
- B) Home
- C) Insert
- D) Visualizations
Answer: D) Visualizations.
Explanation: The Visualizations tab on the Power BI interface contains the visualization pane that allows you to add, modify, or customize visuals in your report.
True or False: Any added visual in Power BI can be downloaded as an image file.
Answer: True.
Explanation: In the Power BI service, you can download added visuals as image files, which can be useful for sharing or for inclusion in other documents.
In Power BI, it is possible to combine two different types of visuals into a single visual representation.
- A) True
- B) False
Answer: A) True.
Explanation: It’s possible in Power BI to create composite visuals, where multiple different visualization types can be combined into a single graphical representation.
Power BI visuals cannot be shared individually without sharing the whole report.
- A) True
- B) False
Answer: B) False.
Explanation: Power BI provides the functionality to share individual visuals or dashboards without necessarily having to share the entire report.
Dimension and Measure are the two fields required to create a visualization in Power BI.
- A) True
- B) False
Answer: A) True.
Explanation: In order to create a visual in Power BI, a Dimension (categorical) field and a Measure (numeric) field are needed to define the x and y-axis.
True or False: You can customize the colors of the visual elements in your Power BI reports according to your preferences.
Answer: True.
Explanation: Power BI gives users the ability to customize the colors of their visual elements, offering greater control over the look and feel of their reports.
You can modify the title, legend, and axis of visualizations in Power BI.
- A) True
- B) False
Answer: A) True.
Explanation: Power BI has extensive customization options that allow you modify the appearance of your visualization, such as the title, legend, axis, and more.
Power BI does not provide any options for real-time data visualization.
- A) True
- B) False
Answer: B) False.
Explanation: Power BI does have capabilities for real-time data visualization.
It’s recommended to add too many visuals to a single page in Power BI report to provide more detailed information.
- A) True
- B) False
Answer: B) False.
Explanation: Adding too many visuals can make the report cluttered and hard for users to understand. Therefore, it’s important to keep your visuals simple and only include essential information.
What format does Power BI use to export visualizations?
- A) PNG
- B) JPG
- C) SVG
- D) All of the above
Answer: A) PNG.
Explanation: Power BI allows exporting visualizations in PNG format. It does not support JPG or SVG for this purpose.
Interview Questions
What is Power BI?
Power BI is a suite of business analytics tools that deliver insights throughout an organization. It enables users to connect to multiple data sources, simplify data prep, and drive ad hoc analysis.
What is the purpose of adding visualizations in a Power BI report?
Visualizations in a Power BI report allow the data to be presented in a more understandable and meaningful way. It makes it possible to see patterns, trends, and insights that might not be recognizable in raw data.
How can you add a visualization to a Power BI report?
To add a visualization to a Power BI report, you can simply select a field on the Fields pane or drag a field to the report canvas, and Power BI will automatically create a table. You can also change the visualization type by selecting a different option from the Visualizations pane.
What types of visualizations can be added to a Power BI report?
There are several types of visualizations you can add to a Power BI report including: tables, matrixes, charts (e.g., bar, column, line, pie), maps, waterfall charts, gauges, cards, and many more.
Can you customize the style and format of visualizations in a Power BI report?
Yes, visualizations in Power BI are highly customizable. You can change the colors, axis labels, titles, legend placement, and other elements.
How can you add a custom visual in Power BI?
You can add a custom visual in Power BI by downloading it from the Power BI Visuals Marketplace and then importing it into Power BI Desktop via the Import from file option in the Visualizations pane.
Can you add a visualization to a Power BI report that interacts with other visualizations?
Yes, you can. This feature is known as Cross-highlighting. In Power BI, when you select a data point on one visualization, it can highlight related data on all other visualizations on the page.
How can you add filters to visualizations in Power BI?
You can add filters to visualizations in Power BI by using the Filters pane. There are three types of filters: visual-level, page-level, and report-level.
Can you add visualizations to a report using data from different data sources?
Yes, Power BI allows you to build reports using data from various sources such as Excel files, SQL Server databases, Sharepoint lists, other cloud-based data sources, and more.
What is the role of the ‘Fields’ pane in Power BI when adding visualizations?
The ‘Fields’ pane in Power BI lists the tables of data loaded into the report. You can drag fields onto your report canvas or onto the ‘Values’, ‘Axis’, ‘Legend’, or ‘Values’ boxes in the Visualizations pane to create visualizations.
What is the purpose of the ‘Format’ pane in Power BI when customizing visualizations?
The ‘Format’ pane in Power BI allows you to customize the appearance of your visualizations. You can adjust properties such as colors, labels, titles, and more depending on the type of visualization.
What is a ‘Matrix’ visualization in Power BI?
A ‘Matrix’ visualization in Power BI is a table that shows data in a multicolumn format. It makes it possible to view and compare complex, multi-dimensional data.
Can you export a visualization from a Power BI report?
Yes, in Power BI, you can export the data from a visualization to a .csv file. However, the actual visual layout cannot be exported.
Can you save and share a Power BI report with added visualizations?
Yes, once you’ve created and saved your Power BI report with visualizations, you can publish it to the Power BI service and share it with other users.
What is the ‘Visualizations’ pane in Power BI used for?
The ‘Visualizations’ pane in Power BI allows you to add and customize visualizations on your report. It provides various types of visuals that you can choose from to best represent your data.
extutorials.com