Which of the following can be used as a wildcard search in Splunk?

The use of a wildcard search in Splunk is essential for querying and retrieving data that matches a specific pattern. The correct choice, represented by the asterisk (*), serves as a wildcard character in Splunk searches. An asterisk can substitute for zero or more characters in a search term, making it incredibly useful for searching through fields where the exact value is not known or where variations of a term might exist.

For example, a search for "error*" would return results that include any words starting with "error," such as "error," "errors," and "error_log." This capability enhances the flexibility and efficiency of data retrieval, allowing users to capture broader datasets without having to specify each potential variant explicitly.

In contrast, the other symbols do not function as wildcards in Splunk. The equals sign is used for exact matches, the greater than symbol serves for comparisons, and the exclamation mark can denote negation in searches. These functionalities are important in their own right but do not provide the wildcard capability that the asterisk does.