正解:D
By default, acceleration is determined automatically based on the data source in the Splunk Common
Information Model (CIM) add-on. The Splunk CIM Add-on is an app that provides common data models for
various domains, such as network traffic, web activity, authentication, etc. The CIM Add-on allows you to
normalize and enrich your data using predefined fields and tags. The CIM Add-on also allows you to
accelerate your data models for faster searches and reports. Acceleration is a feature that pre-computes
summary data for your data models and stores them in tsidx files. Acceleration can improve the performance
and efficiency of your searches and reports that use data models.
By default, acceleration is determined automatically based on the data source in the CIM Add-on. This means
that Splunk will decide whether to enable or disable acceleration for each data model based on some factors,
such as data volume, data type, data model complexity, etc. However, you can also manually enable or disable
acceleration for each data model by using the Settings menu or by editing the datamodels.conf file.