This PL-900 practice question tests your understanding of demonstrate the capabilities of power pages. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Reduce the number of lookup fields on the form.
Fewer lookups mean less data to load initially.
Disable the cascading lookup feature.
Why wrong: Cascading lookups are not a standard feature that impacts performance.
Enable client-side caching for lookups.
Why wrong: Client-side caching is not available for form lookups.
Add FetchXML filters to each lookup to limit results.
Why wrong: Filters help find data faster but still load the field.
Answer choices
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.
Option A is correct because 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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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.
Common exam traps
The trap here is that candidates often 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.
Detailed technical explanation
Under the hood, each lookup field in a Power Pages form uses a separate OData request to the Dataverse Web API to fetch the entity's primary name field and any additional metadata. Even with efficient filtering, the sheer number of simultaneous requests can overwhelm the browser's connection pool and the server's request queue. In real-world scenarios, a form with 20+ lookup fields can take 5–10 seconds to load, whereas reducing to 5–8 lookups can cut load time to under 2 seconds.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
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FAQ
Demonstrate the capabilities of Power Pages — This question tests Demonstrate the capabilities of Power Pages — Read the scenario before looking for a memorised answer..
The correct answer is: Reduce the number of lookup fields on the form. — Option A is correct because 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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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