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2. Data Model (25-30%):
The main domains of this section are:
- Creation of measures with DAX: The applicants should be able to utilize DAX in building multifaceted measures, use CALCULATE to maneuver filters, and utilize the fundamental statistical functions for enhancing data. This domain also requires their skills in creating semi-additive measures and implementing Time Intelligence with DAX.
- Data model development: This objective requires one’s ability to create hierarchies, calculated tables, and calculated columns. It also covers your skills in establishing Q&A features, implementing row-level security functions, and applying security filtering and cross-filter direction.
- Data model design: The learners need to have competence in defining tables, role-playing dimensions, quick measures, and cross-filter direction & relationship cardinality. The topic also requires their skills in designing a data model to fulfill the performance prerequisites, creating common data tables, and solving many-to-many relationships.
- Model performance optimization: This module will measure your competence in enhancing cardinality levels through changing data types and summarization. It will also evaluate your skills in eliminating unnecessary columns and rows, creating and managing aggregations, and identifying poorly performing visuals, measures, and relationships.
NEW QUESTION 48
You have a Power BI report.
You need to create a calculated table to return the 100 highest spending customers.
How should you complete the DAX expression? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation
Box 1: TOPN
TOPN returns the top N rows of the specified table.
Box 2: SUMMARIZE
SUMMARIZE returns a summary table for the requested totals over a set of groups.
Box 3: DESC
Sort in descending order.
It is last in the TOPN command.
TOPN syntax:
TOPN(<n_value>, <table>, <orderBy_expression>, [<order>[, <orderBy_expression>, [<order>]]...]) Reference:
https://docs.microsoft.com/en-us/dax/topn-function-dax
https://docs.microsoft.com/en-us/dax/summarize-function-dax
NEW QUESTION 49
You have a sales system that contains the tables shown in the following table.
The Date table is marked as a date table.
DatelD is the date data type. You need to create an annual sales growth percentage measure.
Which DAX expression should you use?
- A. SUM(sales[sales_amount]) - CALCULATE(SUM(sales[sales_amount]),
SAMEPERIODLASTYEAR('Date'[DatelD]) - B. CALCULATE(SUH(sales[sales_araount]), SAMEPERIODLASTYEAR('Date'[DatelD])
- C. (SUN(sales[sales_araount]) - CALCULATE(SUM(sales[sales_amount]),
SAHEPERIOOLASTYEAR('Date'[DatelD]))/ CALCULATE(SUM(sales[sales_amount]), SAMEPERIOOLASTYEAR ('Date'[DateID]) - D. CALCULATE(SUM(sales[sales_amount]), DATESYTD('Date'[DatelD]))
Answer: B
NEW QUESTION 50
How should you distribute the reports to the board? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation
Box 1: Using a workspace membership
Scenario:
The company wants to provide a single package of reports to the board that contains custom navigation and links to supplementary information.
Note: Workspace is a shared environment for a group of people. You can have multiple Power BI content in a workspace. One workspace can have hundreds of dashboards, reports, and datasets in it.
Box 2: A mail-enabled security group
Scenario: Security Requirements
The reports must be made available to the board from powerbi.com. A mail-enabled security group will be used to share information with the board.
NEW QUESTION 51
You are creating a column chart visualization.
You configure groups as shown in the Groups exhibit. {Click the Groups tab.)
The visualization appears as shown in the Chart exhibit. (Click the Chart tab.)
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION 52
You are modeling data in table named SalesDetail by using Microsoft Power Bl.
You need to provide end users with access to the summary statistics about the SalesDetail data. The users require insights on the completeness of the data and the value distributions.
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.
Answer:
Explanation:
1 - Create a blank query as a data source.
2 - Specify the following query. = Table.Profile(#"SalesDetail")
3 - Create a visual for the query table.
Explanation:
NEW QUESTION 53
You receive revenue data that must be included in Microsoft Power Bl reports.
You perform an initial load of the data from a Microsoft Excel source as shown in the following exhibit.
You plan to create several visuals from the data, including a visual that shows revenue split by year and product.
You need to transform the data to ensure that you can build the visuals. The solution must ensure that the columns are named appropriately for the data that they contain.
Answer:
Explanation:
NEW QUESTION 54
You have a Power B1 report. The report contains visualizations that have interactions. You need to identify which visualizations take the longest to complete. What should you use?
- A. Performance Analyzer in Power B1 Desktop
- B. Microsoft Edge DevTools
- C. Query Diagnostics in Power B1
- D. SQL Server Profiler
Answer: A
NEW QUESTION 55
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 date 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.
Answer:
Explanation:
1 - Convert list to table
2 - Expand Column
3 - Set Date type
NEW QUESTION 56
You need to create a relationship between the Weekly_Returns table and the Date table to meet the reporting requirements of the regional managers. What should you do?
- A. In the Weekly.Returns table, create a new calculated column named date-id in a format of yyyymmdd and use the calculated column to create a relationship to the Date table.
- B. Create a new table based on the Date table where date-id is unique, and then create a many-to-many relationship to Weekly_Return.
- C. Add the Weekly_Returns data to the Sales table by using related DAX functions.
Answer: A
Explanation:
Scenario: Region managers require a visual to analyze weekly sales and returns.
To relate the two tables we need a common column.
Topic 3, Northwind Traders
Overview. General Overview
Northwind Traders is a specialty food import company.
The company recently implemented Power BI to better understand its top customers, products, and suppliers.
Overview. Business Issues
The sales department relies on the IT department to generate reports in Microsoft SQL Server Reporting Services (SSRS). The IT department takes too long to generate the reports and often misunderstands the report requirements.
Existing Environment
Data Sources
Northwind Traders uses the data sources shown in the following table.
Source2 is exported daily from a third-party system and stored in Microsoft SharePoint Online.
Existing Environment. Customer Worksheet
Source2 contains a single worksheet named Customer Details. The first 11 rows of the worksheet are shown in the following table.
All the fields in Source2 are mandatory.
The Address column in Customer Details is the billing address, which can differ from the shipping address.
Existing Environment. Azure SQL Database
Source1 contains the following table:
Orders
Products
Suppliers
Categories
Order Details
Sales Employees
The Orders table contains the following columns.
The Order Details table contains the following columns.
The address in the Orders table is the shipping address, which can differ from the billing address.
The Products table contains the following columns.
The Categories table contains the following columns.
The Suppliers table contains the following columns.
The Sales Employees table contains the following columns.
Each employee in the Sales Employees table is assigned to one sales region. Multiple employees can be assigned to each region.
Requirements. Report Requirements
Northwind Traders requires the following reports:
Top Products
Top Customers
On-Time Shipping
The Top Customers report will show the top 20 customers based on the highest sales amounts in a selected order month or quarter, product category, and sales region.
The Top Products report will show the top 20 products based on the highest sales amounts sold in a selected order month or quarter, sales region, and product category. The report must also show which suppliers provide the top products.
The On-Time Shipping report will show the following metrics for a selected shipping month or quarter:
The percentage of orders that were shipped late by country and shipping region Customers that had multiple late shipments during the last quarter Northwind Traders defines late orders as those shipped after the required shipping date.
The warehouse shipping department must be notified if the percentage of late orders within the current month exceeds 5%.
The reports must show historical data for the current calendar year and the last three calendar years.
Requirements. Technical Requirements
Northwind Traders identifies the following technical requirements:
A single dataset must support all three reports.
The reports must be stored in a single Power BI workspace.
Report data must be current as of 7 AM Pacific Time each day.
The reports must provide fast response times when users interact with a visualization.
The data model must minimize the size of the dataset as much as possible, while meeting the report requirements and the technical requirements.
Requirements. Security Requirements
Access to the reports must be granted to Azure Active Directory (Azure AD) security groups only. An Azure AD security group exists for each department.
The sales department must be able to perform the following tasks in Power BI:
Create, edit, and delete content in the reports.
Manage permissions for workspaces, datasets, and report.
Publish, unpublish, update, and change the permissions for an app.
Assign Azure AD groups role-based access to the reports workspace.
Users in the sales department must be able to access only the data of the sales region to which they are assigned in the Sales Employees table.
Power BI has the following row-level security (RLS) Table filter DAX expression for the Sales Employees table.
[EmailAddress] = USERNAME()
RLS will be applied only to the sales department users. Users in all other departments must be able to view all the data.
NEW QUESTION 57
You have a Microsoft Power BI data model that contains three tables named Orders, Date, and City. There is a one-to-many relationship between Date and Orders and between City and Orders.
The model contains two row-level security (RLS) roles named Role1 and Role2. Role1 contains the following filter.
City[State Province] = "Kentucky"
Role2 contains the following filter.
Date[Calendar Year] = 2020
If a user is a member of both Role1 and Role2, what data will they see in a report that uses the model?
- A. The user will receive an error and will not be able to see the data in the report.
- B. The user will see data for which the State Province value is Kentucky or the Calendar Year is 2020.
- C. The user will see only data for which the State Province value is Kentucky.
- D. The user will see data for which the State Province value is Kentucky and the Calendar Year is 2020.
Answer: B
Explanation:
Explanation
When a report user is assigned to multiple roles, RLS filters become additive. It means report users can see table rows that represent the union of those filters.
Reference:
https://docs.microsoft.com/en-us/power-bi/guidance/rls-guidance
NEW QUESTION 58
You have a sales system that contains the tables shown in the following table.
The Date table is marked as a date table.
DatelD is the date data type.
You need to create an annual sales growth percentage measure.
Which DAX expression should you use?
- A. SUM(sales[sales_amount]) - CALCULATE(SUM(sales[sales_amount]),
SAMEPERIODLASTYEAR('Date'[DatelD]) - B. CALCULATE(SUH(sales[sales_araount]), SAMEPERIODLASTYEAR('Date'[DatelD])
- C. (SUN(sales[sales_araount]) - CALCULATE(SUM(sales[sales_amount]),
SAHEPERIOOLASTYEAR('Date'[DatelD]))/ CALCULATE(SUM(sales[sales_amount]), SAMEPERIOOLASTYEAR ('Date'[DateID]) - D. CALCULATE(SUM(sales[sales_amount]), DATESYTD('Date'[DatelD]))
Answer: B
NEW QUESTION 59
You are creating a column chart visualization.
You configure groups as shown in the Groups exhibit. {Click the Groups tab.)
The visualization appears as shown in the Chart exhibit. (Click the Chart tab.)
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION 60
You build a report to help the sales team understand its performance and the drivers of sales. The team needs to have a single visualization to identify which factors affect success. Which type of visualization should you use?
- A. Q&A
- B. Line and clustered column chart
- C. Funnel chart
- D. Key influences
Answer: D
Explanation:
Explanation
The key influencers visual helps you understand the factors that drive a metric you're interested in. It analyzes your data, ranks the factors that matter, and displays them as key influencers.
The key influencers visual is a great choice if you want to:
* See which factors affect the metric being analyzed.
* Contrast the relative importance of these factors. For example, do short-term contracts have more impact on churn than long-term contracts?
Reference:
https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-influencers
NEW QUESTION 61
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is the same in each question in this series.
You have a Microsoft SQL Server database that contains the following tables.
The following columns contain date information:
- Date[Month] in the mmyyyy format
- Date[Date_ID] in the ddmmyyyy format
- Date[Date_name] in the mm/dd/yyyy format
- Monthly_returns[Month_ID] in the mmyyyy format
The Order table contains more than one million rows.
The Store table has a relationship to the Monthly_returns table on the Store_ID column. This is the only relationship between the tables.
You plan to use Power BI Desktop to create an analytics solution for the data.
You are modifying the model to report on the number of orders.
You need to calculate the number of orders.
What should you do?
- A. Create a calculated measure that uses the COUNTA(Order_ID) DAX formula.
- B. Create a calculated measure that uses the SUM(Order_ID) DAX formula.
- C. Create a calculated column that uses the COUNTA(Order_ID) DAX formula.
- D. Create a calculated column that uses the SUM(Order_ID) DAX formula.
Answer: A
NEW QUESTION 62
You create a dashboard by using the Microsoft Power Bl Service. The dashboard contains a card visual that shows total sales from the current year. You grant users access to the dashboard by using the viewer role on the workspace. A user wants to receive daily notifications of the number shown on the card visual. You need to automate the notifications. What should you do?
- A. Create a subscription.
- B. Create a data alert.
- C. Tag the user in a comment.
- D. Share the dashboard to the user.
Answer: A
NEW QUESTION 63
You are modeling data in table named SalesDetail by using Microsoft Power Bl.
You need to provide end users with access to the summary statistics about the SalesDetail data. The users require insights on the completeness of the data and the value distributions.
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.
Answer:
Explanation:
Explanation
NEW QUESTION 64
You have a Microsoft Power BI data model that contains three tables named Sales, Product, and Date.
The Sales table has an existing measure named [Total Sales] that sums the total sales from the Sales table.
You need to write a calculation that returns the percentage of total sales that a selected ProductCategoryName value represents. The calculation must respect any slicers on ProductCategoryName and must show the percentage of visible total sales. For example, if there are four ProductCategoryName values, and a user filters one out, a table showing ProductCategoryName and the calculation must sum up to 100 percent.
How should you complete the calculation? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/dax/allselected-function-dax
NEW QUESTION 65
You need to create a DAX measure in the data model that only allows users to see projections at the appropriate levels of granularity.
How should you complete the measure? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION 66
Drag and Drop Question
You have a Microsoft Power Bl workspace.
You need to grant the user capabilities shown in the following table.
The solution must use the principle of least privilege.
Which user role should you assign to each user? To answer, drag the appropriate roles to the correct users. Each role may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
User 1 = Member
User 2 = Contributor
https://docs.microsoft.com/en-us/power-bi/collaborate-share/service-new-workspaces
NEW QUESTION 67
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?
- A. pie chart
- B. scatter plot
- C. donut chart
- D. area chart
Answer: B
NEW QUESTION 68
Case Study 1 - Litware, Inc.
Overview
Litware, Inc. is an online retailer that uses Microsoft Power Bl dashboards and reports. The company plans to leverage data from Microsoft SQL Server databases, Microsoft Excel files, text files, and several other data sources.
Litware uses Azure Active Directory (Azure AD) to authenticate users.
Existing Environment
Sales Data
Litware has online sales data that has the SQL schema shown in the following table.
In the Date table, the dateid column has a format of yyyymmdd and the month column has a format of yyyymm. The week column in the Date table and the weekid column in the Weekly_Returns table have a format of yyyyww. The regionid column can be managed by only one sales manager.
Data Concerns
You are concerned with the quality and completeness of the sales data. You plan to verify the sales data for negative sales amounts.
Reporting Requirements
Litware identifies the following technical requirements:
- Executives require a visual that shows sales by region.
- Regional managers require a visual to analyze weekly sales and
returns.
- Sales managers must be able to see the sales data of their respective region only.
- The sales managers require a visual to analyze sales performance
versus sales targets.
- The sale department requires reports that contain the number of sales transactions.
- Users must be able to see the month in reports as shown in the
following example: Feb 2020.
- The customer service department requires a visual that can be
filtered by both sales month and ship month independently.
You need to create a relationship between the Weekly_Returns table and the Date table to meet the reporting requirements of the regional managers.
What should you do?
- A. In the Weekly.Returns table, create a new calculated column named date-id in a format of yyyymmdd and use the calculated column to create a relationship to the Date table.
- B. Create a new table based on the Date table where date-id is unique, and then create a many-to- many relationship to Weekly_Return.
- C. Add the Weekly_Returns data to the Sales table by using related DAX functions.
Answer: A
NEW QUESTION 69
You have a prospective customer list that contains 1,500 rows of data. The list contains the following fields:
* First name
* Last name
* Email address
* State/Region
* Phone number
You import the list into Power Query Editor.
You need to ensure that the list contains records for each State/Region to which you want to target a marketing campaign.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Select Column profile.
- B. Enable Column profiling based on entire dataset.
- C. Select Column quality.
- D. Open the Advanced Editor.
- E. Select Column distribution.
Answer: A,E
Explanation:
Data Profiling, Quality & Distribution in Power BI / Power Query features To enable these features, you need to go to the View tab a Data Preview Group a Check the following:
* Column quality
* Column profile
* Column distribution
* Column profile
Turn on the Column Profiling feature.
* Column distribution
Can use it to visually realize that your query is missing some data because of distinct and uniqueness counts.
Reference:
https://www.poweredsolutions.co/2019/08/13/data-profiling-quality-distribution-in-power-bi-power-query/
https://www.altentertraining.com/microsoft/power-bi/column-profiling-is-good/
NEW QUESTION 70
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