File Info
| Exam | Microsoft Power BI Data Analyst |
| Number | PL-300 |
| File Name | Microsoft.PL-300.PassLeader.2025-03-31.41q.tqb |
| Size | 322 KB |
| Posted | Mar 31, 2025 |
| Download | Microsoft.PL-300.PassLeader.2025-03-31.41q.tqb |
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Demo Questions
Question 1
You are a Power Bl specialist at your organization. In your finance table, you have a column called margin, which is defined as 'margin = revenue - cost of goods sold.' In your company, there are several different ways people refer to margin. Some people call margin by other terms such as income, profit or profit margin. To use the Q&A feature successfully in your dashboard, you need to configure your dataset columns to enable users to type in variations for margin.
Solution: Add a detailed description of how you defined margin.
Does this solution meet the goal?
- Yes
- No
Correct answer: B
Explanation:
In the modelling section, you can add a description within the properties of a column. A description is helpful for other modellers to understand the purpose of the column. However, this description does not have any impact on how Q&A interprets synonyms. In the modelling section, you can add a description within the properties of a column. A description is helpful for other modellers to understand the purpose of the column. However, this description does not have any impact on how Q&A interprets synonyms.
Question 2
You are a Power Bl specialist at your organization. In your inventory table, there are several different ways people refer to inventory. Some people call inventory by other terms such as stock, supply, parts or supply. To use the Q&A feature successfully in your dashboard, you need to configure your inventory table and columns.
Solution: Set the row label on the inventory table.
Does this solution meet the goal?
- Yes
- No
Correct answer: A
Explanation:
When you click on the table name in the modelling view, you can assign a row label to the column. A role label allows you to define which column best identifies a row in the table. This label assists Q&A to generate better visualisations as it knows the best column that identifies a table. When you click on the table name in the modelling view, you can assign a row label to the column.
A role label allows you to define which column best identifies a row in the table. This label assists
Q&A to generate better visualisations as it knows the best column that identifies a table.
Question 3
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: You create a new query that references DataSourceExcel.
Does this meet the goal?
- Yes
- No
Correct answer: B
Question 4
You configure a Microsoft Power BI data model to enable users to ask natural language questions by using Q&A. You create a Date hierarchy (contains Year and Month) in the Date table to visualize Affiliate Income. When users run a query Affiliate Income by date hierarchy, they get correct results.
But, when they run Affiliate Income by Calendar, they do not get any results. You have to set up the model so that the users can query the model with Affiliate Income by Calendar and get the same results. What would you do?
- You add a synonym to the Date hierarchy.
- You add a description to the Date hierarchy.
- You add a synonym to the Date table, as you cannot add a synonym to a hierarchy.
- You add a synonym to the year and month fields of the hierarchy.
Correct answer: A
Question 5
You find an interesting visualization using the Python programming language that you want to run in Power BI. What are the three steps required before you can use Python in Power BI?
- Install Python on your local machine.
- Enable R scripting.
- Install the libraries matplotlib and pandas.
- Enable Python scripting.
- Install the libraries seaborn and keras.
Correct answer: ACD
Explanation:
The steps to get started with Python in Power BI are: Install Python on your local machine. Install the libraries matplotlib and pandas. Enable Python scripting. Incorrect: Not B. R scripting is a separate language and has no relation with Python. Not E. While seaborn is used for data visualization, matplotlib and pandas are required libraries for Python integration. Note that keras is a deep learning library and is not used for data visualization. The steps to get started with Python in Power BI are:
- Install Python on your local machine.
- Install the libraries matplotlib and pandas.
- Enable Python scripting.
Incorrect:
Not B. R scripting is a separate language and has no relation with Python.
Not E. While seaborn is used for data visualization, matplotlib and pandas are required libraries for Python integration. Note that keras is a deep learning library and is not used for data visualization.
Question 6
You have a table that contains sales data and approximately 1,000 rows. You need to identify outliers in the table. Which type of visualization should you use?
- area chart
- donut chart
- scatter plot
- pie chart
Correct answer: C
Question 7
You are asked to optimize the performance of your data model. You have several intermediate queries that are not used for visualization and you have a large transactional table with a Date/Time field. What two optimizations should you do? (Choose two.)
- Change all relationship cross filter directions to single.
- Split the Date/Time field into a separate Date column and a separate time column.
- Turn off single select on slicers.
- Disable Power Query load on intermediary queries.
Correct answer: BD
Explanation:
A Date/Time fleld has many contain unique or high cardinality values making optlmzatlon within the VertiPaq engine difficult. By splitting the Date/Time field into a separate Date and Time field, you reduce the uniqueness of the data and allow for greater storage optimization. Intermediate queries that are intended to support data integration with other queries should not be loaded into the model. To avoid loading the query to the model, ensure that you disable query load in these instances. Incorrect: Not A. You should use the relationship cross filter direction to enable reporting requirements. Not C. Single select works more efficiently than multi-select on slicers. A Date/Time fleld has many contain unique or high cardinality values making optlmzatlon within the VertiPaq engine difficult. By splitting the Date/Time field into a separate Date and Time field, you reduce the uniqueness of the data and allow for greater storage optimization. Intermediate queries that are intended to support data integration with other queries should not be loaded into the model.
To avoid loading the query to the model, ensure that you disable query load in these instances.
Incorrect:
Not A. You should use the relationship cross filter direction to enable reporting requirements.
Not C. Single select works more efficiently than multi-select on slicers.
Question 8
You are the Power Bl administrator at your company which builds VR headsets. You need to assign appropriate workspace roles to your colleagues and must use the lowest permission necessary to accomplish the task. Which roles should you use for the below workspace requirements?
- Update and delete workspaces.
- Publish apps.
- Publish content to the workspace.
- Member/Member/Contributor
- Member/Member/Viewer
- Admin/Member/Contributor
- Admin/Admin/Contributor
Correct answer: C
Explanation:
An admin can update and delete workspaces. A member can publish apps, and a contributor can publish content to the workspace. An admin can update and delete workspaces. A member can publish apps, and a contributor can publish content to the workspace.
Question 9
You have a collection of reports for the HR department of your company. You need to create a visualization for the HR department that shows a historic employee counts and predicts trends during the next six months. Which type of visualization should you use?
- scatter chart
- ribbon chart
- line chart
- key influences
Correct answer: D
Explanation:
https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-influencers https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-influencers
Question 10
You are your company's Power BI expert. You know that data lineage shows you which data sources are used by which datasets. One of your colleagues says he cannot access data lineage.
What could be two possible explanations for data lineage not working?
- Only admins can see the lineage view.
- You need a Power BI Pro license to see lineage view.
- Lineage only works for DirectQuery datasets.
- Lineage view is available only to users with higher than Viewer access to the workspace.
- Each user needs to be granted lineage view permission in the tenant settings.
Correct answer: BD
Explanation:
For lineage to work, you need to ensure you have a Power BI Pro license and you have access to the workspace. Furthermore, users must have an Admin, Member, or Contributor role in the workspace. Users with a Viewer role can't switch to lineage view. Incorrect: Not A. Users with Admin, Member, or Contributor roles in the workspace can see lineage view. Not C. Lineage is not limited to DirectQuery datasets. Not E. You do not need to assign individual permissions for lineage view in the tenant settings. For lineage to work, you need to ensure you have a Power BI Pro license and you have access to the workspace. Furthermore, users must have an Admin, Member, or Contributor role in the workspace. Users with a Viewer role can't switch to lineage view.
Incorrect:
Not A. Users with Admin, Member, or Contributor roles in the workspace can see lineage view.
Not C. Lineage is not limited to DirectQuery datasets.
Not E. You do not need to assign individual permissions for lineage view in the tenant settings.
