Optimize model performance
5 practice questions under this official exam objective (PL-300) — each with the community-verified answer, a full option-by-option explanation and instant feedback.
Reduce Power BI Data Model Size Without Losing Information
This question addresses techniques to optimize a large Power BI data model by identifying and removing redundant columns. It establishes that removing
Which three actions create monthly star-schema totals with minimal model size?
This PL-300 question asks for three actions that produce monthly transaction totals for current and prior years while preserving a star schema and min
Does Removing the Salesperson Table Meet Model1's Size Goal?
In this PL-300 scenario, Model1's Sales fact table already stores both SalespersonID and CityID, so removing the redundant one-column Salesperson dime
Performance analyzer durations: DAX query and visual display metrics
The slow report Summary1 is being profiled with Performance analyzer, and the question asks which two displayed metrics express execution duration.
Does Removing ProductID Shrink the Model Yet Keep City Analysis?
In this PL-300 model-size scenario, deleting the ProductID column from the one-million-row Sales table removes roughly a million string/integer values