Which button in the Field Extractor Utility shows events that do not contain extracted fields?

The rationale behind selecting "Non-Matches" as the correct answer lies in its specific functionality within the Field Extractor Utility. This feature is designed to help users identify events within their dataset that do not conform to or contain the fields that have been successfully extracted. By clicking on "Non-Matches," users can focus on these events, allowing them to refine their data extraction processes or address circumstances where expected fields are absent. This can be crucial for ensuring data completeness and accuracy in analysis.

The other options serve different purposes: "Matched Events" would present events that successfully contain the extracted fields, while "Selected Fields" focuses on the specific fields that have been chosen for extraction. "Non-Extractions" is not a recognized category in this context and does not accurately direct users to view events without the extracted fields. Thus, the choice of "Non-Matches" is particularly relevant for understanding and identifying data that lacks the fields of interest.