Question 286 of 941
MB-910 Describe Dynamics 365 Customer Insights Practice Question
Exhibit
Refer to the exhibit. The following is a KQL query from a Customer Insights environment: CustomerInsights | where CustomerId == "12345" | project CustomerId, PurchaseAmount, PurchaseDate | summarize TotalSpend = sum(PurchaseAmount) by CustomerId
Refer to the exhibit. A data analyst runs this KQL query in Customer Insights. What is the purpose of this query?
⚠ Common exam trap
Watch out — candidates often confuse `sum()` with `avg()` or assume any aggregation implies segmentation, when the `where` clause clearly limits the query to one customer.
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
✓
To calculate the total purchase amount for a specific customer
The KQL query shown in the exhibit uses the `sum()` aggregation function on the `PurchaseAmount` column, filtered by a specific `CustomerID`. This calculates the total purchase amount for that single customer. Option C is correct because the query explicitly sums purchase amounts for one customer, not for a segment or as a predictive model.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To predict the likelihood of a customer making a future purchase
Why it's wrong here
This is not a predictive query.
- ✗
To create a segment of customers with high purchase amounts
Why it's wrong here
The query only returns one customer's total spend.
- ✓
To calculate the total purchase amount for a specific customer
Why this is correct
It sums PurchaseAmount for CustomerId 12345.
- ✗
To create a measure that calculates average purchase amount
Why it's wrong here
It calculates sum, not average, and for one customer.
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Last reviewed: Jun 24, 2026
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