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Question 71 - PL-300 discussion

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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.

Answers
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.

Answers
B.

Create one-to-many relationships between the tables.

C.

Create a calculated measure that aggregates by using the COUNTROWS function.

Answers
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.

Answers
D.

Create a calculated table that contains Ad_id, Site_name, and Impression_date.

Suggested answer: A, B

Explanation:

Grouping in power query reduces the number of rows in the impression table that is gonna be loaded in the model. Creating relationships doesn't increase the size of the model.

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asked 05/10/2024
Gift Thanyane
33 questions
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