Reference:https://www.edureka.co/blog/splunk-events-event-types-and-tags/
As mentioned before, an event type is a way to categorize events based on a search string that matches the
events2. Event types can be tagged, which means that you can apply descriptive labels to event types and use
them in your searches2. Therefore, option A is correct. Event types categorize events based on a search string,
which means that you can define an event type by specifying a search string that matches the events you want
to include in the event type2. Therefore, option C is correct. Event types can be a useful method for capturing
and sharing knowledge, which means that you can use event types to organize your data into meaningful
categories and share them with other users in your organization2. Therefore, option D is correct. Event types
do not have to include a time range, which means that you can create an event type without specifying a time
range for the events2. Therefore, option B is incorrect.