easyMultiple Choice
PL-900 Practice Question: You work for a retail company that uses Microsoft…
You work for a retail company that uses Microsoft Power Platform to manage inventory. The company has a Power Apps canvas app that allows store managers to update stock levels. Recently, the app has been slow to load and sometimes times out when multiple managers use it simultaneously. You need to recommend a solution to improve performance. What should you do?
⚠ Common exam trap
PL-900 often tests the misconception that SharePoint is always sufficient for Power Apps data storage, when in fact high-concurrency or performance-sensitive apps require Dataverse.
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
✓
Migrate the app to use a Microsoft Dataverse database.
Migrating the canvas app to use Microsoft Dataverse improves performance because Dataverse is a relational, transactional data store designed for high-concurrency access, unlike SharePoint lists which have throttling limits and are not optimized for frequent simultaneous updates. Dataverse provides built-in indexing, delegation, and scalability that reduce load times and prevent timeouts when multiple managers use the app concurrently. This directly addresses the root cause of the slowdown: the underlying data platform's limitations.
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 fields in the SharePoint list.
Why it's wrong here
Trimming SharePoint columns does not address concurrent canvas app load; the bottleneck is delegable queries and per-user connections to the data source. Reducing fields is tempting when a list is wide, but it targets storage and form layout, not the throughput limits that cause timeouts under simultaneous manager access.
- ✗
Instruct managers to use a wired network connection instead of Wi-Fi.
Why it's wrong here
Wired connectivity does not reduce the volume of concurrent requests reaching the inventory data source, so timeouts persist. It is tempting because network latency feels like the culprit, and would be correct when Wi-Fi signal loss or interference is the proven cause, not when multiple managers simultaneously overload the backend.
- ✗
Implement a custom API to handle updates.
Why it's wrong here
A custom API adds a further network hop and its own throttling limits, leaving the underlying data-source contention untouched. It is tempting because custom connectors appear to bypass platform limits, and would be correct when integrating a system lacking a standard connector, not when concurrent writes overload the inventory source.
- ✓
Migrate the app to use a Microsoft Dataverse database.
Why this is correct
Microsoft Dataverse provides a relational, indexed backend with delegation and server-side query processing, unlike the canvas app's current data source which struggles under concurrent load. Migrating removes the timeout bottleneck when multiple store managers update stock simultaneously.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This PL-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-900 exam.