DP-700 Exam QuestionsBrowse all questions from this exam

DP-700 Exam - Question 76


Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You have a KQL database that contains two tables named Stream and Reference. Stream contains streaming data in the following format.

Reference contains reference data in the following format.

Both tables contain millions of rows.

You have the following KQL queryset.

You need to reduce how long it takes to run the KQL queryset.

Solution: You add the make_list() function to the output columns.

Does this meet the goal?

Show Answer
Correct Answer:

Discussion

3 comments
Sign in to comment
GHill1982Option: B
Jan 1, 2025

No. The `make_list()` function aggregates values into a list, which can be useful for certain types of analysis but does not inherently improve query performance.

vigaroOption: B
Mar 21, 2025

more processing

13d2a97Option: B
Apr 20, 2025

Using the **make_list()** function in KQL does not improve performance — in fact, it often has the opposite effect, especially when working with large datasets.