Optimize and Troubleshoot Apps PL-400 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   A model-driven app view displays all columns for a large dataset, causing slow load times. What is the most effective way to optimize the view for faster data retrieval?

   • AAdd more columns to provide more information
   • BRemove unnecessary columns from the view
   • CChange the view's background color
   • DIncrease the page size for the view
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2. 27foundation · easy

   A developer needs to view JavaScript errors that occur in a canvas app when a custom component runs. Which browser-based debugging feature is designed for this?

   • APerformance tab in Browser Developer Tools
   • BConsole tab in Browser Developer Tools
   • CPower Apps Monitor
   • DApp Checker
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4. 28foundation · easy

   A developer is troubleshooting a model-driven app where a custom control is not loading correctly. Which feature of Power Apps Monitor would be most useful for this scenario?

   • AViewing the sequence of events and errors during app load
   • BReviewing the app's version history
   • CEditing the app's formulas directly in the tool
   • DDeploying the app to a different environment
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5. 29expert · medium

   A model-driven app has a main form for the Contact table that loads slowly. The form includes a subgrid of related activities, a quick view form for the parent account, and a custom script that runs on form load. Users need the subgrid and quick view, but the custom script is only needed when a specific field changes. You need to reduce the initial load time. What should you do?

   • AIncrease the number of records shown in the subgrid to 50.
   • BRemove the subgrid and quick view from the form and add them to a different form.
   • CKeep the subgrid and quick view as is, but disable the custom script entirely.
   • DMove the subgrid and quick view form to a collapsed tab, and change the custom script to run on the OnChange event of the specific field.
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6. 30expert · hard

   A model-driven app has a main form for the Account entity. The form includes a subgrid showing all related opportunities, a timeline, and several custom controls. Users report that the form loads slowly. You have used the Monitor tool and found that the subgrid is the main bottleneck. You need to improve the form's load time while keeping the subgrid visible and functional. What should you do?

   • AIncrease the subgrid's page size to 100 records to reduce the number of requests.
   • BChange the subgrid to show only the first 5 records and add a 'View All' button that opens a full list view.
   • CUse the Monitor tool to identify the slowest query, then add an index to the Opportunity table.
   • DRemove the subgrid from the form and add a link to a dashboard.
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