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Exam PL-300 topic 2 question 100 discussion

Actual exam question from Microsoft's PL-300
Question #: 100
Topic #: 2
[All PL-300 Questions]

You have a Power BI semantic model that contains two queries.

You discover that a report based on the model has performance issues.

You plan to use Power Query to reduce the data loaded to the model.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct answer is worth one point.

  • A. Apply group by and summarize techniques.
  • B. Combine the queries by using Append.
  • C. Remove unnecessary columns and rows.
  • D. Combine the queries by using Merge.
  • E. Create a new query group.
Show Suggested Answer Hide Answer
Suggested Answer: AC 🗳️
by VladStan at Oct. 8, 2024, 9:10 a.m.

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desibaby09
Highly Voted 8 months ago
Selected Answer: AC
https://learn.microsoft.com/en-us/power-bi/guidance/import-modeling-data-reduction
upvoted 5 times
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jaume
Most Recent 8 months, 2 weeks ago
Selected Answer: AC
Ony options A and C will reduce data size and potentially improving performance. Combining queries (by using Append or Merge) could improve refresh but not report performance as is and a new query group would not impact at all
upvoted 3 times
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amiruladliroslibin
9 months, 2 weeks ago
Selected Answer: AC
B. Combine the queries by using Append While combining queries via append can help merge multiple datasets, it typically does not reduce the data size. In fact, it may increase the dataset size unless managed carefully. D. Combine the queries by using Merge Merging queries is useful for joining data from different sources, but it is not inherently a data reduction technique. It may help in certain cases, but it is not directly aimed at reducing the amount of data loaded to the model. E. Create a new query group A query group is simply an organizational tool in Power Query to manage your queries better. It has no impact on performance or data reduction.
upvoted 3 times
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LuluSkyy
9 months, 4 weeks ago
A and C are the correct answers
upvoted 2 times
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VladStan
10 months ago
Selected Answer: AC
Correct answers https://learn.microsoft.com/en-us/power-bi/guidance/import-modeling-data-reduction
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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