Chapter 8, Optimizing Model Performance

1. Which technique will increase the performance of data models?
   1. Adding more memory to Power BI Desktop
   2. Changing the data source to Microsoft Excel
   3. Publishing reports to Power BI Premium
   4. Removing unnecessary data from the data model
2. Aggregating data will do what?
   1. Reduce the number of columns and rows.
   2. Reduce the number of columns only.
   3. Increase the number of rows only.
   4. Both b and c
3. Filtering in a Power BI report can be applied to what?
   1. All pages in a report file, a single page, only a visual.
   2. Filtering can only be applied to visuals.
   3. A single page or a visual.
   4. A dashboard, a page, or a visual.
4. Which tool or capability should be used to determine how much of a query duration uses the formula engine or the storage engine?
   1. Query diagnostics
   2. Query analytics
   3. DAX Studio
   4. Tabular Editor
5. When using query diagnostics, which kind of diagnostics should be used to analyze multiple steps in a query?
   1. Multiple-step diagnostics
   2. Session diagnostics
   3. Step diagnostics...