A canvas app uses a SharePoint list with 50,000 items. The app has a gallery that shows items where the Title field starts with "A". Users report that the gallery only shows 500 items. You need to ensure that all matching items are displayed. What should you do?

Use the Filter function with the in operator to match the title.

Increase the data row limit in the app settings to 50,000.

Change the filter to use the StartsWith function on the Title column.

Use the Monitor tool to check the query, then add a sort to the gallery.

A developer wants to inspect the network requests made by a canvas app when it loads data from a custom connector. Which browser-based tool is most appropriate for this task?

Browser Developer Tools (F12) Network tab

A model-driven app has a view for the Case entity that displays all cases from the last year. The view includes 20 columns and sorts by the Created On column. Users report that the view loads slowly. You need to improve the view's performance while still showing the same set of records. What should you do?

Add a filter to the view to show only cases from the current month.

Change the sort order to sort by the Case Number column instead of Created On.

Use the Monitor tool to identify the slowest query, then increase the view's page size.

Reduce the number of columns displayed in the view to only those needed by users.

A company has a canvas app used by field technicians to log service visits. Users report that the app takes a long time to display the first screen, especially on mobile devices with poor connectivity. The first screen shows a gallery bound to a SharePoint list with 10,000 items. You need to improve the initial load time without changing the data source. What should you do?

Use the Monitor tool to identify the slowest network requests, then add a loading spinner to the gallery.

Increase the gallery's Items property to load all 10,000 items at once so the data is available locally.

Set the gallery's Items property to a filtered query that delegates to SharePoint, and use the OnStart property to pre-load only the essential data.

Replace the SharePoint list with a Microsoft Dataverse table that has better performance.

Which Power Apps feature is commonly used to pre-load data into a collection during app startup?

Control.OnSelect with UpdateContext

Screen.OnVisible property with RemoveIf

App.OnStart property with ClearCollect

Microsoft Certified:Power Platform Developer Associate

Domain 3Objective 2

Optimize and Troubleshoot Apps PL-400 Practice Questions (Page 4)

Part of the Implement Power Apps improvements domain, which accounts for 10–15% of the PL-400 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~4–10 in this domain), expect 2–5 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

6concepts

10–15%of the exam

Questions 16–20

16application · medium
A canvas app uses a SharePoint list with 50,000 items. The app has a gallery that shows items where the Title field starts with "A". Users report that the gallery only shows 500 items. You need to ensure that all matching items are displayed. What should you do?
Select an answer first
17foundation · easy
A developer wants to inspect the network requests made by a canvas app when it loads data from a custom connector. Which browser-based tool is most appropriate for this task?
Select an answer first
18application · medium
A model-driven app has a view for the Case entity that displays all cases from the last year. The view includes 20 columns and sorts by the Created On column. Users report that the view loads slowly. You need to improve the view's performance while still showing the same set of records. What should you do?
Select an answer first
19application · medium
A company has a canvas app used by field technicians to log service visits. Users report that the app takes a long time to display the first screen, especially on mobile devices with poor connectivity. The first screen shows a gallery bound to a SharePoint list with 10,000 items. You need to improve the initial load time without changing the data source. What should you do?
Select an answer first
20foundation · easy
Which Power Apps feature is commonly used to pre-load data into a collection during app startup?
Select an answer first

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Optimize and Troubleshoot Apps PL-400 Practice Questions (Page 4)

Questions 16–20

A canvas app uses a SharePoint list with 50,000 items. The app has a gallery that shows items where the Title field starts with "A". Users report that the gallery only shows 500 items. You need to ensure that all matching items are displayed. What should you do?

A developer wants to inspect the network requests made by a canvas app when it loads data from a custom connector. Which browser-based tool is most appropriate for this task?

Which Power Apps feature is commonly used to pre-load data into a collection during app startup?

Keep studying — Implement Power Apps improvements