PL-300 · Question #336
PL-300 Question #336: Real Exam Question with Answer & Explanation
The correct answer is A: Yes. Even though better solution is to delete the IoT GUID and only keep the IOT ID, concatenating those two and deleting the original will reduce the column number and improve the performance.
Question
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. From Power Query Editor, you profile the data shown in the following exhibit. The IoT GUID and IoT ID columns are unique to each row in the query. You need to analyze IoT events by the hour and day of the year. The solution must improve dataset performance. Solution: You create a custom column that concatenates the IoT GUID column and the IoT ID column and then delete the IoT GUID and IoT ID columns. Does this meet the goal?
Options
- AYes
- BNo
Explanation
Even though better solution is to delete the IoT GUID and only keep the IOT ID, concatenating those two and deleting the original will reduce the column number and improve the performance.
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