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DA-100, DA-100, Data analyst QUESTIONS WITH ALL PASSED ANSWERS 2024
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10/31/24, 3:03 AM DA-100, DA-100, Data analyst Flashcards | QuizletEUNICE
DA-100, DA-100, Data analystQUESTIONS WITH ALL PASSED
ANSWERS 2024
Terms in this set (163)
You have a large dataset that contains more than 1 million rows. The table has a
datetime column named Date. You need to reduce the size of the data model. What
should you do?
D. Split the Date column into two columns,
· A. Round the hour of the Date column to startOfHour.
one that contains only the time and another
· B. Change the data type of the Date column to Text.
that contains only the date.
· C. Trim the Date column.
· D. Split the Date column into two columns, one that contains only the time and
another that contains only the date.
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
· B. Remove the Subject and Body columns
do?
during the import.
· 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.
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.
A. Group the impressions by Ad_id, ✑ Minimize the data model size.
Site_name, and Impression_date. Aggregate Which two actions should you perform? Each correct answer presents part of the
by using the CountRows function. solution.
B. Create one-to-many relationships
between the tables. 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.
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, 10/31/24, 3:03 AM DA-100, DA-100, Data analyst Flashcards | Quizlet
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?
· D. web content · A. video
· B. custom streaming data
· C. text box
· D. web content
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?
· D. Column quality · A. Show whitespace
· B. Column profile
· C. Column distribution
· D. Column quality
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
· C. Enable Column profiling based on ✑ Phone number
entire dataset. You import the list into Power Query Editor. You need to ensure that the list contains
· E. Select Column profile. records for each State/Region to which you want to target a marketing campaign.
Which two actions should you perform?
· 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.
HOTSPOT -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
1. Remove Column ✑ client_notified_value
2. List.Select ✑ client_responded_timestamp
3. Text.EndsWith ✑ 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.
DRAG DROP - 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
1. Convert the list to a table
JSON file. The solution must ensure that date attributes can be used as date
2. Expand the columns
hierarchies in Microsoft Power BI reports. Which three actions should you perform in
3. Set the data types
sequence? To answer, move the appropriate actions from the list of actions to the
answer area and arrange them in the correct order. Select and Place:
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