PL300 Flashcards
You have a Power BI dashboard that is comprised of pinned visuals that are taken from a variety of reports.
Which three objects from a report page can be pinned to the dashboard?
custom visiual, ribbon chart, image
You upload reports to the Power BI service and pin several visuals to a dashboard.
You plan to create alerts rules for several visuals.
What are two locations you can view the alerts? Each correct answer presents a complete solution.
email, notification center
You need to add a new visual to a Power BI Dashboard. This visual does NOT exist on a report in the workspace.
What should you do first?
select add a title
You plan to create a Power BI workspace.
You need to ensure that you will be able to configure a Microsoft 365 group whose SharePoint Online document library is available to workspace users once the workspace is created.
Which setting should you configure when creating the workspace?
workspace onedrive
You manage a Power BI workspace in shared capacity. The workspace contains a dataset named DS1. You plan to schedule the refresh of DS1.
What is the maximum number of data refreshes per day?
8
You manage a Power BI workspace in shared capacity. The workspace contains a report that uses a dataset named DS1.
You need to implement an incremental refresh of DS1.
What should you do first?
define filter parameter
You manage a Power BI workspace that includes a dataset with your company’s sales data. You create a report that displays the sales data grouped by department.
You need to use row-level security to ensure that, once the report is published, employees in each department can only see the sales data for their department.
What should you do first?
in PowerBI desktop, create a role
You plan to get data from flat files for a Power BI dataset.
You need to select a location to store the files.
Which location requires an on-premises data gateway?
shared folder on a local network
(local network requires gateway)
You plan to get data for a Power BI dataset from flat files.
You need to select a location for the files. The location must provide the ability to configure scheduled refresh for the dataset by using Microsoft 365 credentials.
Which two location types should you recommend? Each correct answer presents a complete solution.
One drive for business
Share Point - Team Sites
(local file does not require credential)
You have multiple Excel files stored in a folder synced with OneDrive for Business.
You need to import data from the files. The solution must NOT use a data gateway.
Which type of connector should you use?
SharePoint folder
(the trick is OneDrive from the question, in response, it needs online service, like SharePoint)
When importing data from an Excel workbook into Power BI, you receive the error message: “We couldn’t find any data formatted as a table.”
What should you do to resolve the error?
create a table in Excel workbook
The error message indicates that the Excel workbook does not contain a table. To create it, in the Excel workbook, you need to select the data you want to import, press Ctrl+T or choose the Table button, click OK and save the change. Using the Data Validation button in Excel does not create a table. Organizational and template apps provide a way to implement functionality within Power BI, but, in this case, the issue is caused by an absence of a table in the Excel workbook, so installing an app would have no effect on resolving the issue.
You import an Excel file into Power BI Desktop and begin to analyze the data in Power Query Editor.
You need to identify outliers in a text column within the data source.
Which information should you use from Power Query Editor?
Top and bottom
The top and bottom entries in Value distribution identify outliers, which appear, respectively, the greatest and the smallest number of times in that column. The value of the Distinct entry in Column statistics indicates the total count of different values. The value of the Unique entry in Column statistics indicates the total count of different values that appear only once. The min and max values in the Column profile of a text column designate the entries which appear, respectively, first and last in alphabetical order.
You use Power BI Desktop to transform a query that retrieves data from an Excel spreadsheet.
You need to view and modify multiple steps in all the M code.
Which interface should you use?
Advanced Editor in PowerQuery (multiple steps)
The Advanced Editor in the Power Query Editor provides the ability to work with all the M code used for shaping data in a query at once. Data view provides access to data within a dataset. Model view provides access to the data model of a dataset. The Formula Bar in the Power Query Editor provides the ability to edit only one step at a time.
You have an Excel spreadsheet that contains three columns labeled Year, 2021, and 2012. The entries in rows for the first column consists of names of the individual months in the year while the other two columns contain the sales amount for each month for the corresponding year.
You import data from the Excel spreadsheet into Power BI Desktop.
You need to transform the data so it will consist of three columns, with the first one containing month, the second containing year, and the third containing the sales amount for that month and year.
Which transformation should you use first?
Unpivot
Selecting Unpivot will allow you to shape the current table into the one with the year, month, and sales amount columns, which will need to be renamed afterwards. Pivot would be applicable in the opposite scenario, in which flat data needs to be reorganized into one containing aggregate values for each unique value in each column. Transposing would switch rows and columns. Removing columns would result in a table with insufficient data to perform unpivot.
You have a query that has a column named Country and columns for each month of sales data. The names of the sales data columns use a format of Month Year, for example January 2022. The month columns contain the Sales Amount values for each month.
You need to reshape the table to have all sales amount values in a single column.
A new column should also be added and contain the relevant month year for each row of data.
What should you do from the Power Query Editor?
Select the Country column and then select Unpivot Other Columns.
From the Power Query Editor, you import data from a .csv file. The data includes a column named ZIP that contains postal codes from the United States.
You notice that Power Query Editor automatically applies the Whole Number data type to the ZIP column.
You need to ensure that the ZIP column uses the Text data type and that all values remain 5 characters long.
What should you do?
From Power Query Editor, update the current changed type step and replace convert from number to text for the ZIP column.
To correctly update the data to text you need to replace the number type conversion with a text conversion, and to keep all other data type column transformations. This needs to be done in the Power Query Editor. Adding a new applied step at the end of the query would result in loosing zip codes that start with 0. Changing the data type in Data View is equivalent to adding an applied step at the end of the query and would not preserve leading zeros. Deleting the changed type step would not set the data type to Text.
You have a table that contains a column named ProductID.
The ProductID column contains values that have a prefix of PD followed by five numbers. For example: pd15332.
You plan to convert the ProductID values to numbers (integer).
You need to remove the leading two letters from the current ProductID values.
Which command should you use?
replace values
You have a Power BI data source that contains the following tables:
ProductCategory: Lists the product category ID and category name
ProductSubcategory: Lists the product subcategory ID, subcategory name, and the related category ID
ProductList: Lists the product ID, name, and subcategory ID
You need to optimize the data to create a dimension for use in a star schema data model.
How should the tables be transformed before loading into the model?
Select only one answer.
Merge the queries to create a single loaded table for Product.
A star schema should have a single table for each dimension or product, so using the combine command is what is required to create a single product table and aim towards a star schema design.
From Power BI Desktop, you create a data source by importing a Cosmos DB for NoSQL item collection.
You connect to the Cosmos DB account, database, and collection, but the preview displays only a list of items named Record.
You need to select individual fields from items in the collection that you want to load into Power BI Desktop.
What should you do first?
Open Power Query Editor.
This behavior is by design. The Preview pane in Power BI shows a list of Record items when connecting to a collection of JSON formatted items. To view individual item fields, open the Power Query window and use the Expander button on the right side of the Column1 header to display the list of fields. Switching to the model view would not benefit us in any way, since the data has not been imported yet. Retrieving Cosmos DB account key or connection string at this point is meaningless, since that was required to connect to Cosmos DB account, which has been already completed.
You have a fact table that contains sales data.
The fact table includes a SalesDate column formatted as a Date data type. Auto date/time setting is disabled in both global and current file options.
You load the fact table into Power BI Desktop.
You need to ensure that you are able to analyze data on a yearly, quarterly, monthly, weekly, and daily basis. Your solution must minimize the model size and administrative effort.
What should you do?
Add a separate date dimension table.
You have a Power BI model with the following fact tables and storage modes.
FactStoreSales (Import mode)
FactOnlineSales (DirectQuery mode)
You have a dimension table named DimCalendar that has a relationship to both fact tables.
You need to assign a storage mode for DimCalendar. The solution must minimize the time to execute queries that combine data from the dimension table and the fact tables.
Which storage mode should you use?
Dual
Using Dual mode means that either an import query can be run when accessing data from FactStoreSales, or a DirectQuery query can be run when accessing data from FactOnlineSales. Using Import mode means the queries are only optimized for FactStoreSales (Import). Using DirectQuery mode means the queries are only optimized for FactOnlineSales (DirectQuery). A storage mode of Import, DirectQuery, or Dual must be assigned.
You plan to create a report in Power BI Desktop.
You need to create a visualization to display a running total. The solution must meet the following requirements:
The initial and the final value columns must start on the horizontal axis.
The intermediate values must be floating columns.
Which type of visualization should you use?
waterfall
A waterfall visualization is a chart that displays a running total, with the initial and the final value columns starting on the horizontal axis while the intermediate values are floating columns. A combo visualization is a chart that combines a column chart and a line chart and can have one or two Y axes. A funnel visualization is a chart that has sequential connected stages, where items flow sequentially from one stage to the next. A scatter visualization is a chart with two value axes, with one set of numerical data along a horizontal axis and another set of numerical values along a vertical axis.
You plan to create a report in Power BI Desktop.
You need to identify the type of visualization that displays data as a set of nested rectangles.
Which visualization should you use?
Treemap
A treemap visualization displays data as a set of nested rectangles. A slicer visualization is available in different formats, including list, drop-down, and buttons, but not nested rectangles. A bar chart visualization presents data as horizontal bars. A column chart presents data as vertical columns.
You plan to create a report in Power BI Desktop that will display sales opportunities by five sales stages, including lead, prospect, qualified, committed, and transacted.
You need to identify the type of visualization that will display a linear process with sequentially connected stages, with one stage transitioning to the next.
Which visualization should you use?
Funnel
A funnel visualization displays a linear process with sequentially connected stages, with one stage transitioning to the next. A slicer visualization is available in different formats, including list, drop-down, and buttons, but not sequentially connected stages, with one stage transitioning to the next. A treemap visualization displays data as a set of nested rectangles. A waterfall visualization displays a running total as values are added or subtracted.
You need to create a custom Python visual by using Power BI Desktop.
What do you need to do first?
Enable the script visuals option in the Visualization pane of Power BI Desktop.
Enabling the script visuals option in the Visualization pane of Power BI Desktop is required before creating custom Python visuals in Power BI Desktop. Installing Python is not required. Configuring global Python scripting options in Power BI Desktop is not required to create Python visuals. The ability to create a custom Python visual by using Power BI Desktop has no dependency on enabling preview features.
You need to create a bookmark that toggles the visibility of a visual.
This bookmark must only toggle the visibility state and perform no other action.
Which three configurations should you make? Each correct answer presents part of the solution
- Disable the Data option.
- Disable the Current Page
- Enable the Display Option
The current page capture allows the bookmark to navigate back to the page of capture. The data capture updates filters and drillthrough which should not occur for this bookmark. The display capture updates visual visibility on the report page.
You need to create a visual that displays sales by employees, trending over months.
The visual must clearly show how employees are performing against each other and have a ranking for each period.
Which visual should you use?
Ribbon chart
A ribbon chart places the highest (ranked) value at the top of the stacked column each month and shows those ranked changes over time. A treemap is not meant for displaying changes over time and wouldn’t easily show ranked comparisons between employees. The clustered bar chart can be used to show changes over time, and a clustered bar chart will show comparisons between employees, but no ranking data is provided between employees. A scatterplot is typically used to compare a relationship between two (or more) calculations and their categorical distribution between each other.
From Power BI Desktop, you open a Power BI report that contains three pages named Main, Error Rate, and On-time Rate.
You add a button to the Main page for navigation.
You need to implement a solution that meets the following requirements:
- The navigation destination must change based on the output of a DAX measure named [Error Rate].
- If [Error Rate] is greater than 5%, the button must display the text “Error Rate” and navigate to the Error Rate page.
- Otherwise, the button must display the text “On-time Rate” and navigate to the On-Time Rate page.
What three actions should you perform? Each correct answer presents part of the solution.
- Create a DAX measure that outputs the correct page name based on the value of [Error Rate].
- Set the button type to Page Navigation and then use conditional formatting to specify the destination.
- Use conditional formatting to set the button text.
To configure a button for conditional page navigation, you need to create a DAX measure that outputs the correct destination page name. Then configure the button to use page navigation and use the newly created DAX measure to specify the navigation destination. To change the button text to match the page name, conditional formatting must be used to set the text to equal the newly created DAX measure. No bookmarks are necessary. It is not necessary to set the destination to a specific page since conditional formatting is used to specify the destination.
You plan to build a Power BI report and set up conditional formatting of data fields.
You need to identify two visuals that support the conditional formatting functionality.
Which two types of visuals should you identify? Each correct answer presents a complete solution.
- Matrix
- Table
You have a visual that is being cross-highlighted.
By default, what data will be displayed in a report tooltip?
the filtered (cross-highlighted) data
By default, report tooltips will apply the filter from the cross-highlighted data into the tooltip. Report page tooltips need to be manually created and are not assigned to a visual by default.
You have a bar chart and column chart visual on a report page. Selecting any column from the bar chart visual filters the column chart data to less than 1% of its unfiltered value.
Which type of visual interaction should be used when the bar chart is filtering the column chart to ensure that you can easily see the data?
filter
Filter will show you the filtered data in this visual. So even when showing filtered data that is less than 1% of the unfiltered value, it will still display well in the column visual. Highlight shows you both the unfiltered and filtered values in the visual, for comparison purposes. Drillthrough is a page navigation experience that takes you from one page to another plus applies a set of filters to page navigated to. Expand is a way to navigate down a level using the hierarchy controls.
You need to create a report in Power BI Desktop that will display the sales data of your company such that customers of a similar age will be grouped into clusters.
Which visual should you add to the report?
scatter
Creating a scatter visual is the first step of applying the clustering technique that groups data into clusters. Card, gauge, and treemap visuals do not support clustering.