What monitoring input option ignores a file's existing content and only indexes new data as it arrives?

The option that focuses on ignoring a file's existing content and indexing only the new data as it arrives is followTail. This setting allows Splunk to begin indexing only from the end of the file, effectively disregarding any pre-existing data. This feature is particularly useful for log files that are continuously appended, as it ensures that only the most recent entries are captured, avoiding duplication of previously indexed content.

When using followTail, the system actively monitors the file for new data, picking up only fresh entries since the last indexed position. This is essential in scenarios where existing data is irrelevant or when the volume of data could lead to inefficiencies if older content were processed along with the new.

While the other options may pertain to handling data from files in different ways, they do not specifically achieve the goal of focusing solely on newly added data, which is the primary function of followTail.