PL-900 Practice Question: Describe the business value of Microsoft Power Platform
Your organization has a Power Apps app that uses the Microsoft Dataverse connector. Users report that the app loads slowly. You review the app and find that it loads all records from a large table (over 500,000 rows) into a gallery. What is the best action to improve performance?
⚠ Common exam trap
Test-takers frequently confuse client-side caching or row limits with the core delegation concept, mistakenly believing that increasing limits or clearing caches solves performance issues, when the real solution is to ensure queries are processed on the server via delegable filters.
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
✓
Modify the gallery's Items property to use a delegable filter, such as Filter(Table, Condition).
Modifying the gallery's Items property to use a delegable filter (e.g., Filter(Table, Condition)) ensures that the query is processed server-side by Microsoft Dataverse, retrieving only the subset of records that match the condition. This avoids loading all 500,000+ rows into the client app, which is the root cause of the slow performance. Delegation allows Power Apps to offload data processing to the data source, significantly reducing network payload and client memory usage.
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 data row limit in the app settings.
Why it's wrong here
Increasing limit would worsen performance by loading more data.
- ✓
Modify the gallery's Items property to use a delegable filter, such as Filter(Table, Condition).
Why this is correct
Delegation filters are processed server-side, reducing data load.
- ✗
Clear the app cache on the client devices.
Why it's wrong here
Caching helps with subsequent loads, not initial load speed.
- ✗
Reduce the delegation limit in the environment settings.
Why it's wrong here
Reducing limit would not help; delegation must be used.
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Written by Johnson Ajibi, MSc IT Security
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