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Q1:
You have a Microsoft Power Bl report. The size of the PBIX file is 550 MB. The report is accessed by using an App workspace in the shared capacity of powerbi.com.
The report uses an imported dataset that contains one fact table. The fact table contains 12 million rows. The dataset is scheduled to refresh twice a day at 08:00 and 17:00.
The report is a single page that contains 15 custom visuals and 10 default visuals.
Users say that the report is slow to load the visuals when they access and interact with the report
You need to recommend a solution to improve the performance of the report.
What should you recommend?
A. Replace the default visuals with AppSource visuals.
B. Change any DAX measures to use iterator functions.
C. Remove unused columns from tables in the data model.
D. Increase the number of times that the dataset is refreshed
Correct Answer: C
DirectQuery: No data is imported or copied into Power BI Desktop. Import: The selected tables and columns are imported into Power BI Desktop. As you create or interact with a visualization, Power BI Desktop uses the imported data.
Benefits of using DirectQuery
There are a few benefits to using DirectQuery:
DirectQuery lets you build visualizations over very large datasets, where it would otherwise be unfeasible to first import all the data with pre-aggregation. Underlying data changes can require a refresh of data.
For some reports, the need to display current data can require large data transfers, making reimporting data unfeasible. By contrast, DirectQuery reports always use current data.
The 1-GB dataset limitation doesn’t apply to DirectQuery.
Reference:
https://docs.microsoft.com/en-us/power-bi/connect-data/desktop-use-directquery
Q2:
DRAG DROP
You are building a dataset from a JSON file that contains an array of documents.
You need to import attributes as columns from all the documents in the JSON file. The solution must ensure that data attributes can be used as date hierarchies in Microsoft Power BI reports.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Select and Place:
Correct Answer:
1- Convert list to table 2- Expand Column 3- Set Date type
Here is an example: https://youtu.be/B4kzyxnhQfI
The definition of the function which expands columns: https://docs.microsoft.com/en- us/powerquery-m/table-expandrecordcolumn
Q3:
You have a collection of reports for the HR department of your company. The datasets use row-level security (RLS). The company has multiple sales regions that each have an HR manager. You need to ensure that the HR managers can interact with the data from their region only. The HR managers must be prevented from changing the layout of the reports.
How should you provide access to the reports for the HR managers?
A. Create a new workspace, copy the datasets and reports, and add the HR managers as members of the workspace.
B. Publish the reports to a different workspace other than the one hosting the datasets.
C. Publish the reports in an app and grant the HR managers access permission.
D. Add the HR managers as members of the existing workspace that hosts the reports and the datasets.
Correct Answer: C
Note: Row-level security (RLS) with Power BI can be used to restrict data access for given users. Filters restrict data access at the row level, and you can define filters within roles. In the Power BI service, members of a workspace have
access to datasets in the workspace.
RLS doesn’t restrict this data access.
Reference:
https://docs.microsoft.com/en-us/power-bi/admin/service-admin-rls
Q4:
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while
others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen.
You have a Power BI report that imports a data table and a sales table from an Azure SQL database data source.
The sales table has the following date foreign keys:
1. Due Date
2. Order Date
3. Delivery Date
You need to support the analysis of sales over time-based on all the date foreign keys.
Solution: From Power Query Editor, you rename the date query as Due Date. You reference the Due Date query twice to make the queries for Order Date and Delivery Date.
Does this meet the goal?
A. Yes
B. No
Correct Answer: A
Creating two additional tables in Power Query can be a possible solution:
Remove any inactive relationships.
Consider renaming the role-playing dimension-type table to better describe its role. In the example, the Airport table is related to the ArrivalAirport column of the Flight table, so it\’s renamed as Arrival Airport. Create a copy of the role-playing
table, providing it with a name that reflects its role. If it\’s an Import table, we recommend defining a calculated table. If it\’s a DirectQuery table, you can duplicate the Power Query query.
In the example, the Departure Airport table was created by using the following calculated table definition.
Q5:
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while
others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen.
You have a query for a table named Sales. Sales has a column named CustomerlD. The Data Type of CustomerlD is Whole Number.
You refresh the data and find several errors. You discover that new entries in the Sales table contain non-numeric values.
You need to ensure that non-numeric values in the CustomerlD column are set to 0.
Solution: From Query Editor, select the CustomerlD column and click Remove Errors.
Does this meet the goal?
A. Yes
B. No
Correct Answer: B
Q6:
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while
others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen.
You are modeling data by using Microsoft Power Bl. Part of the data model is a large Microsoft SQL Server table named Order that has more than 100 million records.
During the development process, you need to import a sample of the data from the Order table.
Solution: You write a DAX expression that uses the FILTER function.
Does this meet the goal?
A. Yes
B. No
Correct Answer: B
The filter is applied after the data is imported. Instead, add a WHERE clause to the SQL statement.
Reference: https://docs.microsoft.com/en-us/power-bi/connect-data/service-gateway-sql-tutorial
Q7:
HOTSPOT
You are creating a quick measure as shown in the following exhibit.
You need to create a monthly rolling average measure for Sales over time.
How should you configure the quick measure calculation? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: Total Sales We select the field Total Sales
Box 2: Date Select a date field.
Box 3: Month Monthly periods.
Reference: https://docs.microsoft.com/en-us/power-bi/transform-model/desktop-quick-measures
Q8:
HOTSPOT
You have a table that contains a column named Phone. The following is a sample of the data in the Phone column.
You need to add a new column that contains the data in the format of nnn-nnn-nnnn.
How should you complete the Query Editor formula? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Q9:
You have a Microsoft Power Bl dashboard. The report used to create the dashboard uses an imported dataset from a Microsoft SQL Server data source. The dashboard is shown in the exhibit. (Click the Exhibit tab.) What occurred at 12:03:06 PM?
A. A user pressed F5
B. A new transaction was added to the data source.
C. A user added a comment to a tile.
D. The dashboard tile cache was refreshed.
Correct Answer: A
Reference: https://docs.microsoft.com/en-us/power-bi/connect-data/refresh-data
Q10:
DRAG DROP
You have the Power BI data model shown in the following exhibit.
Select and Place:
Correct Answer:
Q11:
HOTSPOT
You need to calculate the last day of the month in the balance sheet data to ensure that you can relate the balance sheet data to the Date table.
Which type of calculation and which formula should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: A DAX Calculated measure
Box 2: Date.EndofQuarter(#date([Year],[Mont],1))
END OF QUARTER returns the last date of the quarter in the current context for the specified column of dates.
The following sample formula creates a measure that returns the end of the quarter, for the current context.
= ENDOFQUARTER(DateTime[DateKey])
Reference:
https://docs.microsoft.com/en-us/dax/endofquarter-function-dax
Q12:
HOTSPOT
You have a column named UnitslnStock as shown in the following exhibit
UnitsInStock has 75 non-null values, of which 51 are unique.
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
Hot Area:
Correct Answer:
Box 1: 75 rows
Is nullable allows NULL values in the column.
Box 2: reduce
Q13:
You have a Microsoft SharePoint Online site that contains several document libraries. One of the document libraries contains manufacturing reports saved as Microsoft Excel files. All the manufacturing reports have the same data structure.
You need to load only the manufacturing reports to a table for analysis.
What should you do in Microsoft Power Bl Desktop?
A. Get data from a SharePoint Online folder, enter the site URL, and then select Combine and Load.
B. Get data from a SharePoint Online list and enter the site URL. Edit the query and filter by the path to the manufacturing reports library.
C. Get data from a SharePoint Online folder and enter the site URL. Edit the query and filter by the path to the manufacturing reports library.
D. Get data from a SharePoint Online list, enter the site URL, and then select Combine and Load.
Correct Answer: B
We have to import Excel files from SharePoint, so we need the connector SharePoint folder which is used to get access to the files stored in the library.
SharePoint list is a collection of content that has rows and columns (like a table) and is used for task lists, calendars, etc. Since we have to filter only on manufacturing reports, we have to select Transform and then filter by the corresponding folder path.
https://docs.microsoft.com/en-us/power-query/connectors/sharepointlist
Q14:
You import two Microsoft Excel tables named Customer and Address into Power Query. The customer contains the following columns:
Customer ID Customer Name Phone Email Address Address ID
The address contains the following columns:
Address ID Address Line 1 Address Line 2 City State/Region Country Postal Code
The Customer ID and Address ID columns represent unique rows.
You need to create a query that has one row per customer. Each row must contain City, State/Region, and Country for each customer.
What should you do?
A. Merge the Customer and Address tables.
B. Transpose the Customer and Address tables.
C. Group the Customer and Address tables by the Address ID column.
D. Append the Customer and Address tables.
Correct Answer: A
There are two primary ways of combining queries: merging and appending. When you have one or more columns that you\’d like to add to another query, you merge the queries.
When you have additional rows of data that you\’d like to add to an existing query, you append the query.
Reference: https://docs.microsoft.com/en-us/power-bi/connect-data/desktop-shape-and-combine-data
Q15:
others might not have a correct solution.
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen,
You create a parameter named DataSourceExcel that holds the file name and location of a Microsoft Excel data source.
You need to update the query to reference the parameter instead of multiple hard-coded copies of the location within each query definition.
Solution: In the Power Query M code, you replace references to the Excel file with DataSourceExcel.
Does this meet the goal?
A. Yes
B. No
Correct Answer: A
Instead, modify the source step of the queries to use DataSourceExcel as the file path.
Note: Parameterising a Data Source could be used in many different use cases. From connecting to different data sources defined in Query Parameters to load different combinations of columns.
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