Which of the following search modes automatically returns all extracted fields in the fields sidebar?

The search mode that automatically returns all extracted fields in the fields sidebar is "Verbose." When using verbose mode, Splunk processes the search results to include all available fields, making them easily accessible for further analysis or investigation. This is particularly useful when users want a comprehensive view of all data attributes associated with their search results, enabling them to explore relationships and insights more effectively.

Verbose mode can be handy when dealing with complex datasets where the user might need to identify various fields that may not be apparent in other search modes. It offers maximum visibility into the data, allowing users to make more informed decisions based on the entirety of the extracted fields available.

The other search modes, while optimized for different scenarios, do not provide the same level of detail in terms of field extraction. For example, Fast mode prioritizes performance, potentially limiting the number of fields returned to speed up the search process. Smart mode attempts to balance performance and field extraction but does not guarantee the return of all fields as verbose does. Default mode usually strikes a middle ground but is not as comprehensive as verbose.