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PL-900 Practice Question: A Power Pages site has a form that submits data…
A Power Pages site has a form that submits data to Dataverse. Users report that the form is slow to load because it contains many lookup fields. What is the best practice to improve form load performance?
⚠ Common exam trap
Many candidates confuse performance improvements that affect the initial load (like reducing lookups) with features that affect interaction or filtering (like cascading lookups or FetchXML filters), leading them to choose options that only help after the form is already loaded.
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
✓
Reduce the number of lookup fields on the form.
Reducing the number of lookup fields directly decreases the number of separate database queries and network round-trips required to load the form. Each lookup field in a Power Pages form triggers an individual request to Dataverse to retrieve the related record's display name and metadata, so fewer lookups means fewer requests and faster load times.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Reduce the number of lookup fields on the form.
Why this is correct
Fewer lookups mean less data to load initially.
- ✗
Disable the cascading lookup feature.
Why it's wrong here
Cascading lookups are not a standard feature that impacts performance.
- ✗
Enable client-side caching for lookups.
Why it's wrong here
Client-side caching is not available for form lookups.
- ✗
Add FetchXML filters to each lookup to limit results.
Why it's wrong here
Filters help find data faster but still load the field.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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