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Exam Analyzing Data with Microsoft Power BI
Number DA-100
File Name Analyzing Data with Microsoft Power BI.dump4pass.DA-100.2021-03-16.5e.84q.vcex
Size 6.47 Mb
Posted March 16, 2021
Downloads 95

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Demo Questions

Question 1
You need to create a calculated column to display the month based on the reporting requirements. 
Which DAX expression should you use? 

  • A: FORMAT('Date'[date], "MMM YYYY")
  • B: FORMAT('Date' [date], "M YY")
  • C: FORMAT('Date'[date_id], "MMM") & "" & FORMAT('Date'[year], "#")
  • D: FORMAT('Date' [date_id], "MMM YYYY")



Question 2
You need to review the data for which there are concerns before creating the data model. 
What should you do in Power Query Editor?

  • A: Transform the sales_amount column to replace negative values with 0.
  • B: Select Column distribution.
  • C: Select the sales_amount column and apply a number filter.
  • D: Select Column profile, and then select the sales_amount column.



Question 3
What is the minimum number of Power BI datasets needed to support the reports?

  • A: two imported datasets
  • B: a single DirectQuery dataset
  • C: two DirectQuery datasets
  • D: a single imported dataset



Question 4
You have a custom connector that returns ID, From, To, Subject, Body, and Has Attachments for every email sent during the past year. More than 10 million records are returned. 
You build a report analyzing the internal networks of employees based on whom they send emails to. 
You need to prevent report recipients from reading the analyzed emails. The solution must minimize the model size. 
What should you do?

  • A: Implement row-level security (RLS) so that the report recipients can only see results based on the emails they sent.
  • B: Remove the Subject and Body columns during the import.
  • C: From Model view, set the Subject and Body columns to Hidden.



Question 5
You have the tables shown in the following table. 

   

The Impressions table contains approximately 30 million records per month. 
You need to create an ad analytics system to meet the following requirements:
Present ad impression counts for the day, campaign, and Site_name. The analytics for the last year are required. 
Minimize the data model size. 
Which two actions should you perform? Each correct answer presents part of the solution. 
NOTE: Each correct selection is worth one point.

  • A: Group the impressions by Ad_id, Site_name, and Impression_date. 
    Aggregate by using the CountRows function.
  • B: Create one-to-many relationships between the tables.
  • C: Create a calculated measure that aggregates by using the COUNTROWS function.
  • D: Create a calculated table that contains Ad_id, Site_name, and Impression_date.



Question 6
Your company has training videos that are published to Microsoft Stream. 
You need to surface the videos directly in a Microsoft Power BI dashboard. 
Which type of tile should you add?

  • A: video
  • B: custom streaming data
  • C: text box
  • D: web content



Question 7
You open a query in Power Query Editor. 
You need to identify the percentage of empty values in each column as quickly as possible. 
Which Data Preview option should you select? 

  • A: Show whitespace
  • B: Column profile
  • C: Column distribution
  • D: Column quality



Question 8
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: Open the Advanced Editor.
  • B: Select Column quality.
  • C: Enable Column profiling based on entire dataset.
  • D: Select Column distribution.
  • E: Select Column profile.



Question 9
You have an API that returns more than 100 columns. The following is a sample of column names. 
client_notified_timestamp 
client_notified_source 
client_notified_sourceid 
client_notified_value 
client_responded_timestamp 
client_responded_source 
client_responded_sourceid 
client_responded_value 
You plan to include only a subset of the returned columns. 
You need to remove any columns that have a suffix of sourceid. 
How should you complete the Power Query M code? To answer, select the appropriate options in the answer area. 
NOTE: Each correct selection is worth one point. 




Question 10
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. 







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