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 in the review screen.
You have a data source that contains a column. The column contains case sensitive data.
You have a Power BI semantic model in DirectQuery mode.
You connect to the model and discover that it contains undefined values and errors.
You need to resolve the issue.
Solution: You add an index key and normalize casing in the data source.
Does this meet the goal?
A. Yes
B. No
Show Answer
Correct Answer: A
Explanation: In DirectQuery, case-sensitive source data can lead to mismatches that appear as undefined values or errors when values that should match differ only by letter casing. Normalizing the casing in the data source addresses that root cause. Adding an index key is not what fixes the issue, but it does not invalidate the solution. Therefore, the proposed solution meets the stated goal.
Sources:
https://www.pass4success.com/microsoft/discussions/exam-pl-300-topic-1-question-50-discussion
Question 103
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 in the review screen.
You have a data source that contains a column. The column contains case sensitive data.
You have a Power BI semantic model in DirectQuery mode.
You connect to the model and discover that it contains undefined values and errors.
You need to resolve the issue.
Solution: You implicitly convert the values into the required type.
Does this meet the goal?
A. Yes
B. No
Show Answer
Correct Answer: B
Explanation: Implicitly converting values to the required data type does not resolve issues caused by case-sensitive values leading to undefined values or errors in a DirectQuery semantic model. The appropriate fix is to address the case-sensitive text values or clean/replace errors rather than relying on implicit type conversion.
Question 104
You create a report by using Microsoft Power BI Desktop.
The report uses data from a Microsoft SQL Server Analysis Services (SSAS) tabular model located on your company's internal network.
You plan to publish the report to the Power BI Service.
What should you implement to ensure that users who consume the report from the Power BI Service have the most up-to-date data from the tabular model?
A. a scheduled refresh of the semantic model
B. an OData feed
C. an On-premises data gateway
D. a subscription
Show Answer
Correct Answer: C
Explanation: For a Power BI report that connects to an on-premises SSAS Tabular model, the Power BI Service requires an On-premises data gateway to query the model and provide current data. With a live connection to SSAS Tabular, data is not imported into Power BI, so scheduled refresh is not the mechanism for keeping data current. An OData feed and subscriptions do not provide live connectivity to the on-premises model.
Question 105
HOTSPOT
-
You have an organization dimension named DimOrganizations.
You have four related tables as shown in the following exhibit.
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.
Show Answer
Correct Answer: snowflake
DimOrgSubVertical
Explanation: The dimension is normalized across multiple related dimension tables (snowflake). DimOrgSubVertical is the direct child of DimOrgVertical and therefore the table that supports the hierarchy beneath DimOrgVertical.
Question 106
You are configuring a Power BI report for accessibility as shown in the following table.
You need to change the default colors of all three visuals to make the report more accessible to users who have color vision deficiency.
Which two settings should you configure in the Customize theme window? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
A. First-level elements colors
B. Theme colors
C. Divergent colors
D. Sentiment colors
Show Answer
Correct Answer: C, D
Explanation: Divergent colors control the default color scales used for conditional formatting (such as gradient coloring in tables), while Sentiment colors control the default positive/negative/total colors used by visuals such as KPI and Waterfall. Changing these two settings updates the default colors used by the three visuals for improved accessibility.
Sources:
https://learn.microsoft.com/en-nz/power-bi/create-reports/desktop-report-themes
Question 107
You have a Power BI semantic model that connects to a streaming data source. The data source is updated frequently.
You need to create a Power BI report that meets the following requirements:
• Supports real-time analytics
• Minimizes performance impact on the data source
• Displays the most recent data without performing a data refresh
Which connectivity mode should you use for the dataset?
A. DirectQuery mode
B. import mode
C. LiveConnect mode
D. push mode
Show Answer
Correct Answer: D
Explanation: Push mode is designed for streaming and real-time analytics. Data is pushed into the Power BI semantic model as it arrives, so reports show the latest data without scheduled or manual refreshes. Because Power BI does not repeatedly query the source, it minimizes performance impact on the underlying data source. DirectQuery provides near real-time access but continuously queries the source, increasing source load. Import requires refreshes, and LiveConnect is for connecting to existing semantic models or Analysis Services rather than streaming sources.
Question 108
You have a Microsoft Excel file in a Microsoft OneDrive folder.
The file must be imported to a Power BI semantic model.
You need to ensure that the semantic model can be refreshed in PowerBi.com.
Which two connectors can you use to connect to the file? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
A. Web
B. Excel Workbook
C. Folder
D. Text/CSV
E. SharePoint folder
Show Answer
Correct Answer: A, E
Explanation: To ensure scheduled refresh in the Power BI service without requiring an on-premises gateway, connect to the cloud-hosted OneDrive file using cloud-supported connectors. The Web connector can access the Excel file via its OneDrive/SharePoint URL, and the SharePoint Folder connector is designed for SharePoint Online, which underpins OneDrive for Business. The local Excel Workbook and Folder connectors typically reference local file access and are not the appropriate choice for this requirement; Text/CSV does not apply to an Excel file.
Question 109
HOTSPOT -
You have a Power BI semantic model that contains two tables as shown in the following exhibit.
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.
Show Answer
Correct Answer: Single
Delete the many-to-one relationship
Explanation: The active many-to-one relationship shows single-direction cross filtering. Only one active relationship can exist between the same two tables, so to make the many-to-many relationship active for bidirectional filtering and RLS, you must first remove (or otherwise deactivate) the existing active many-to-one relationship. Since 'make inactive' is not an option, 'delete the many-to-one relationship' is the correct choice.
Question 110
HOTSPOT -
You have a Power BI semantic model that contains a table named Opportunity.
The Opportunity table contains a column named Qualification. The Qualification column contains values between 0 and 1.
You need to build a new measure to score the opportunities on a scale of low. medium, and high.
How should you complete the DAX formula? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: IF
HIGH
MEDIUM
Explanation: Use a nested IF: values < 0.5 are Low, values > 0.7 are High, otherwise Medium. IF.EAGER is unnecessary here because eager evaluation is not required.
Question 111
You have a Power BI semantic model that contains four queries named Query 1, Query2. Query3, and Query4.
Query1 loads customer data into the model and is referenced by the other three queries.
You discover that data refresh for the model is slow.
You need to improve the data refresh time. The solution must minimize costs.
What should you do?
A. Run the Table.buffer function in Query1.
B. Duplicate Query1 to all the other queries.
C. Reconfigure Query1 as a dataflow entity.
D. From the Power BI Admin portal, increase the Capacity settings.
Show Answer
Correct Answer: C
Explanation: The key issue is that a referenced query can be evaluated multiple times during refresh. Microsoft recommends moving the shared staging query into a dataflow so it is evaluated once and then reused by downstream queries, improving refresh performance and reducing repeated source access. Table.Buffer can sometimes help but is not a general recommendation for referenced-query refresh optimization, can increase memory usage, and may inhibit query folding. Duplicating the query increases redundant work, and increasing capacity raises costs.
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