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PL-400 Exam - Question 35


A company has a model-driven app form. Many users use the form.

Users state that the form takes too long to fully load.

You need to evaluate the form design to improve loading performance.

Which three control types can you use? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

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Correct Answer: ABD

To improve the loading performance of a model-driven app form, consider using controls that are lightweight and optimized for quick display. The 'timeline' control can streamline data presentation and improve load times. The 'quick view form' allows for minimal, focused information display without much overhead. The 'lookup' control facilitates rapid data retrieval with efficient indexing. Using these controls can help enhance performance by reducing the complexity and size of the form content. iFrame, on the other hand, might load external content which can slow down the form performance, thus it is not recommended in this context.

Discussion

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koboj
Dec 8, 2023

Correct for me

chrischOptions: BCD
Jan 14, 2025

GPT ❌ A. Timeline Timeline Controls display activity records (emails, notes, tasks) related to a record. Performance Impact: Timeline loads are deferred, meaning they load after the main form has finished loading. It doesn’t significantly affect the initial load performance. Optimization Tip: Not a primary control to adjust for performance issues.

kingAzureOptions: ACD
Oct 1, 2024

I believe all could be relevant for the loading performance. But could it be as simple as A, C and D, because "Qucik View Form" is not.. directly a control? Its supposed to be Quick View Control? haha...

greendendOptions: ABD
Dec 22, 2024

Every control in this issue affects performance! I think the wording of the question is unclear. It is completely unclear what needs to be done. By the way, I research a piece of information: "An IFrame control embeds content from another website or application within the form. This can significantly impact loading performance due to the need to load external content. It is generally not recommended for use in forms where performance is a concern." According to this if we have problems with the performance I would not use iFrame as it is not recommended for heavy pages. However, I don't urge anyone to listen to me. This is just my opinion.

Juan0414Options: ABC
Mar 3, 2025

This is a very confusing and tricky question. All of these controls are mentioned in the documentation as factors that may affect performance (https://learn.microsoft.com/en-us/power-apps/maker/model-driven-apps/design-performant-forms#data-driven-controls). So, based on the documentation timeline and quick view form must be for sure, but iFrame and Lookup are in the same category of controls "that are less impactful than the data-driven controls but can still participate in the above layout strategy in order to achieve the best performance". So, I choose iFrame because based on experiences, it may causes more issues than lookup fields

itmaxuserOptions: ABC
Apr 19, 2025

✅ A. Timeline ✔️ Correct — Timeline controls (like Activities) can significantly impact performance, especially if there are many related records. It's recommended to defer loading or limit the data shown. ✅ B. Quick View Form ✔️ Correct — Quick View Forms load related entity data, and if used excessively or inefficiently, they can slow down form loading. Evaluate how many are being used and optimize their data source and visibility rules. ✅ C. iFrame ✔️ Correct — iFrames load external content which can delay form rendering depending on the page being loaded. Avoid loading them on the main form tab if not necessary. ❌ D. Lookup ❌ Incorrect — Lookup controls by themselves do not significantly impact load time unless they're configured with complex filtering logic or have performance issues in the related entity.