This PL-900 practice question tests your understanding of identify foundational components of microsoft power platform. 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 sales team uses a Canvas app to track leads. Users report that the app loads slowly when accessing on mobile devices. Which component should be optimized to improve performance?
Update the app version number
Why wrong: Version number does not affect performance.
Optimize data source connections and queries
Reduces data transfer and speeds up app.
Increase the app icon size
Why wrong: Unrelated to performance.
Change the app's background color
Why wrong: Cosmetic change, no performance impact.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Optimize data source connections and queries
Optimizing data source connections and queries directly reduces the amount of data transferred and the number of round trips between the Canvas app and its data source (e.g., Dataverse, SharePoint, SQL). On mobile devices, network latency and bandwidth are often constrained, so inefficient queries (e.g., loading all records instead of using filters) cause significant slowdowns. This is the primary performance lever for Canvas apps, as per Microsoft's guidance on app optimization.
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.
Update the app version number
Why it's wrong here
Version number does not affect performance.
Optimize data source connections and queries
Why this is correct
Reduces data transfer and speeds up app.
Related concept
Read the scenario before looking for a memorised answer.
Increase the app icon size
Why it's wrong here
Unrelated to performance.
Change the app's background color
Why it's wrong here
Cosmetic change, no performance impact.
Common exam traps
The trap here is that candidates confuse cosmetic or metadata changes (version, icon, color) with performance optimizations, overlooking that data source efficiency is the root cause of slow loading in Canvas apps on mobile devices.
Detailed technical explanation
Under the hood, Canvas apps use connectors that issue REST or OData queries to the data source. Unoptimized queries often lack server-side filtering (e.g., using `Filter()` with a delegation-compatible condition) or retrieve entire tables, causing large payloads that overwhelm mobile bandwidth. A real-world scenario: a sales team with 50,000 leads might see 10-second load times if the app loads all records, but switching to a filtered query (e.g., only leads with `Status = 'Active'`) reduces payload to a few hundred records, cutting 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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Identify foundational components of Microsoft Power Platform — This question tests Identify foundational components of Microsoft Power Platform — Read the scenario before looking for a memorised answer..
The correct answer is: Optimize data source connections and queries — Optimizing data source connections and queries directly reduces the amount of data transferred and the number of round trips between the Canvas app and its data source (e.g., Dataverse, SharePoint, SQL). On mobile devices, network latency and bandwidth are often constrained, so inefficient queries (e.g., loading all records instead of using filters) cause significant slowdowns. This is the primary performance lever for Canvas apps, as per Microsoft's guidance on app optimization.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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