Which of the following searches shows a valid use of a macro?

The selected answer demonstrates a valid use of a macro by correctly implementing it within a search command. In this context, the macro, referred to as 'makeMyField', is designed to enhance the search query by performing transformations or computations on the specified field, which is 'oldField' in this case.

By wrapping the macro call in single quotes and placing it appropriately in the command flow, this search uses the macro effectively to create a new field, 'newField'. After processing with the macro, the results are displayed in a table format, which confirms that the macro's output can be integrated into the dataset and further manipulated or displayed.

Macros in Splunk are powerful tools that help streamline searches by encapsulating complex expressions or commands. The use of a macro enhances code readability and allows for easy reuse of logic across different search queries, making it an essential feature in Splunk data analysis.

In contrast, the other options either misuse the macro or do not conform to the syntax required for macros in Splunk. They might involve incorrect placements, such as using unnecessary expressions or wrong syntax for macro invocation, which would lead to errors or unexpected results during execution. Thus, the first choice stands out for its clear and correct implementation of a macro in a search