PL-900 Demonstrate the capabilities of Power Apps Practice Question
A user reports that a canvas app is loading slowly. The app connects to a large SharePoint list with over 10,000 items. Which change would most improve performance?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply a delegable filter on the data source to limit records returned.
Applying a delegable filter on the data source limits the number of records retrieved to only those that match the filter, which significantly improves performance. Option A is incorrect because increasing the delegation limit does not help if the query itself is not delegable; the app will still retrieve all 10,000 items. Option C is wrong because adding more screens does not reduce the amount of data loaded. Option D is incorrect because disabling offline mode does not affect initial loading speed; it only impacts offline capabilities.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the delegation limit to 10,000.
Why it's wrong here
Increasing delegation limit doesn't speed up loading; it only allows more records.
- ✓
Apply a delegable filter on the data source to limit records returned.
Why this is correct
Filtering at the data source reduces the data transferred and improves performance.
- ✗
Add more screens to distribute the data.
Why it's wrong here
Adding screens doesn't reduce data load.
- ✗
Disable offline mode.
Why it's wrong here
Offline mode doesn't affect initial load performance.
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Same concept, more angles
1 more way this is tested on PL-900
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A canvas app includes a gallery that shows a list of customers. The app loads slowly when the gallery displays more than 500 records. What is the best way to improve performance?
hard- A.Use a non-delegable query
- B.Convert the app to a model-driven app
- ✓ C.Apply a filter to the gallery data source
- D.Increase the gallery height
Why C: Applying a filter to the gallery data source reduces the number of records loaded into the gallery, which improves performance because fewer records need to be transferred and rendered. Option A (non-delegable query) would actually worsen performance by loading all records locally. Option B (converting to a model-driven app) is a significant redesign and not a simple performance fix. Option D (increasing gallery height) does not affect the amount of data loaded; it only changes the display area.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PL-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-900 exam.