Exam PL-300 topic 2 question 100 discussion

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

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.

A and C are the correct answers

Correct answers https://learn.microsoft.com/en-us/power-bi/guidance/import-modeling-data-reduction