PL-900 Practice Question: Describe the business value of Microsoft Power Platform
A company uses Power Apps for a field service app. They notice that the app loads slowly when users access it on mobile devices. What is the most likely cause?
⚠ Common exam trap
Watch out — candidates often confuse server-side latency (e.g., Dataverse region) with client-side resource loading, assuming any performance issue must be related to data or authentication rather than the app's static assets.
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
✓
The app contains large images that are not optimized
Large, unoptimized images increase the payload size that must be downloaded to the mobile device, directly impacting load times, especially over cellular networks. Power Apps loads all resources, including images, when the app starts, so oversized images cause significant delays. Optimizing images (e.g., compressing, resizing, using modern formats like WebP) reduces bandwidth usage and speeds up app loading.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The app has too many Power Automate flows
Why it's wrong here
Flows are not executed during app loading unless triggered by controls.
- ✗
The Dataverse environment is in a different region
Why it's wrong here
Region differences cause latency, but images are a more common mobile issue.
- ✗
The app uses Microsoft Entra ID for authentication
Why it's wrong here
Authentication overhead is minimal and not the primary cause of slowness.
- ✓
The app contains large images that are not optimized
Why this is correct
Large images increase loading time, especially on mobile devices.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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