Question 320
A KPI should count each transaction row, including repeated customers. What is the MOST appropriate Power BI design decision?
Explanation
Correct Answer
COUNTROWS counts records in the filtered fact table rather than distinct identifiers, supporting filtered transaction event count.
Incorrect Answers
SUM aggregates numeric fact values within the current filter context. It would address additive filtered revenue metric, not filtered transaction event count.
DISTINCTCOUNT avoids counting multiple transactions for the same customer as separate buyers. It may suit unique purchasing customer count, not filtered transaction event count.
AVERAGE calculates the mean of eligible numeric values in filter context. It is useful for context-sensitive average satisfaction, not for filtered transaction event count.






Microsoft Power BI Data Analyst (PL-300) Practice Tests