PL-900 Demonstrate the capabilities of Power Apps Practice Question
A user created a canvas app to collect feedback. The app writes data to an Excel file stored in OneDrive. When multiple users submit feedback simultaneously, some entries are lost. What is the most likely cause?
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
✓
Excel is not designed for concurrent multi-user writes
Excel is not designed for concurrent multi-user writes. When multiple users submit data simultaneously, conflicts and data loss occur. Option A is incorrect because the issue is not performance but concurrency. Option B is incorrect because OneDrive sync does not lock the file in a way that causes data loss; the underlying problem is Excel's lack of concurrent write support. Option C is incorrect because a Power Automate flow would not cause entries to be lost; it might introduce delays but not data loss.
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 a performance issue
Why it's wrong here
Performance would slow down but not lose data.
- ✗
The Excel file is locked by OneDrive sync
Why it's wrong here
OneDrive sync does not lock the file in a way that prevents writes.
- ✗
A Power Automate flow is delaying the write
Why it's wrong here
Flow delays would not cause loss, only latency.
- ✓
Excel is not designed for concurrent multi-user writes
Why this is correct
Excel cannot handle simultaneous writes; data conflicts or loss occurs.
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