PL-900 Demonstrate the capabilities of Power Apps Practice Question
You have a model-driven app that includes a custom table. You need to add a field that calculates a value based on other fields (e.g., total price = quantity * unit price). Which type of field should you create?
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
✓
Calculated field
Calculated fields perform calculations at the data source level, such as total price = quantity * unit price. Option A is correct. Option B is wrong because text fields store plain text, not calculations. Option C is wrong because choice fields provide a dropdown list of options. Option D is wrong because rollup fields aggregate data from related records, not compute values from fields in the same record.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Calculated field
Why this is correct
Calculated fields allow formulas that compute values from other fields.
- ✗
Text field
Why it's wrong here
Text fields store free text, not calculations.
- ✗
Choice field
Why it's wrong here
Choice fields provide a list of options, not calculations.
- ✗
Rollup field
Why it's wrong here
Rollup fields aggregate values from related records, not simple calculations.
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Written by Johnson Ajibi, MSc IT Security
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