Which choices describe valid uses of macros? (Select all that apply)

The use of macros in Splunk allows for the reuse of commonly used search expressions to streamline search queries. They enable users to encapsulate complex or repetitive logic in a simple string, which can be referenced within searches.

The first option showcases how a macro can be applied: it defines a function that transforms an existing field named oldField into newField using the macro makeMyField. This is a typical usage of macros where the macro acts as a reusable piece of code that transforms input data during the search process.

In contrast, the second option mentions a function name formatted as a macro, yet does not provide context on how this function would transform the data. While it implies the use of a macro with functionName(oldField), it lacks clarity on whether functionName has been defined as a macro.

The third option uses a macro macroName, which should be formatted correctly to execute within the context of the search. However, the command lacks specifics about what macroName does and whether it is a properly defined macro, rendering it unclear on its validity.

The fourth option employs a lookup operation which does not utilize a macro. Lookups serve a different purpose in search queries, dealing with data enrichment rather