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PL-900 Practice Question: Based on the exhibit, what is the result of the…
Network Topology
Based on the exhibit, what is the result of the TotalQuantity measure?
⚠ Common exam trap
A common mix-up: candidates confuse SUM with COUNT or average the values, leading them to pick 15 (a single row value) or 30 (a partial sum), rather than correctly aggregating all rows.
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
✓
45
The TotalQuantity measure uses the SUM function on the Quantity column, which aggregates all numeric values in that column. Given the data in the exhibit, the sum of the Quantity values (10, 15, 5, 15) equals 45, making option D correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
15
Why it's wrong here
15 is the quantity for OrderID 3 only.
- ✗
50
Why it's wrong here
50 is not the sum of the quantities.
- ✗
30
Why it's wrong here
30 is the sum of OrderID 1 and 2 only.
- ✓
45
Why this is correct
10+20+15 = 45.
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