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Microsoft DA-100

Analyzing Data with Microsoft Power BI

Verified practice questions with detailed answers, clear explanations, and community discussion.

  • 94

    questions

  • 3 days ago

    last updated

  • 4.8/5

    overall rating

Question 1 of 94

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?

Answer choices
Show answer

Correct answer: B

To prevent report recipients from reading the analyzed emails while also minimizing the model size, you should remove the Subject and Body columns during the import. This eliminates unnecessary data, directly reducing the model size and avoiding any unwanted visibility of email contents. Simply hiding columns or implementing row-level security would not reduce the model size, they only affect data visibility while keeping the underlying data in the model.

Community votes

6 votes

BSuggested

100%

Question 2 of 94

You have the tables shown in the following table.

Exam DA-100: Question 2 - Image 1

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.

Answer choices
Show answer

Correct answers: A, B

To meet the requirements of presenting ad impression counts for the day, campaign, and Site_name while minimizing the data model size, you should group the impressions by Ad_id, Site_name, and Impression_date and aggregate by using the CountRows function to reduce the size of the data upfront. Additionally, creating one-to-many relationships between the tables will ensure the data is properly related and can be analyzed across the different dimensions (campaigns, ads, and impressions). This combination will help achieve the required analytics with a minimized data model.

Community votes

15 votes

ABSuggested

100%

Question 3 of 94

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?

Answer choices
Show answer

Correct answer: D

To surface videos directly in a Microsoft Power BI dashboard from Microsoft Stream, a 'Web Content' tile should be used. This allows embedding of any web content, including videos, by using the embed code provided by Microsoft Stream. Power BI does not have a specific 'video' tile, and 'custom streaming data' is used for real-time data streams, not for embedding pre-recorded videos. The 'text box' option is not relevant for embedding videos.

Community votes

23 votes

DSuggested

74%

A

17%

B

9%

Question 4 of 94

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?

Answer choices
Show answer

Correct answer: D

Column quality: This option provides immediate visibility into the percentage of valid, error, and empty data values for each column in a table within the Power Query Editor. This functionality is especially useful for quickly identifying empty values, fulfilling the requirement specified in the question.

Community votes

7 votes

DSuggested

100%

Question 5 of 94

You have a prospective customer list that contains

  1. 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.

Answer choices
Show answer

Correct answers: C, E

To ensure that the list contains records for each State/Region to which you want to target a marketing campaign, you should enable column profiling based on the entire dataset and select column profile. Column profiling based on the entire dataset is required because the customer list contains 1,500 rows, exceeding the 1,000 rows typically analyzed by default. Enabling this option ensures that the analysis includes all rows. Selecting column profile provides distinct and unique counts of values in columns, which is crucial for confirming the presence of records for each target State/Region.

Community votes

31 votes

CESuggested

94%

CD

6%

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Charles Sirois
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As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Lance Chambers
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Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Alisha Kelly
Italy
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Casper Claassen
Netherlands
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Gabriele Ghesla
Italy
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
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I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
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Neil Savage
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A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Morgan Farmer
United Kingdom
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Remi Nuyts
United States
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Archie Hopkins
United States
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Nancy Mcbride
United States
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Neil Savage
United States
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.

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