正解:A,C
You can set a global threshold across all traffic to limit how often events from a specific source or destination are logged and displayed per specified time period. For more information, see Understanding Thresholding, page 22-1 and Configuring Global Thresholds, page 22-3.
* You can set thresholds per shared object rule, standard text rule, or preprocessor rule in your intrusion policy configuration, as described in Configuring Event Thresholding, page 20-21.
https://www.cisco.com/c/en/us/td/docs/security/firesight/541/firepower-module-user-guide/asa- firepower-module-user-guide-v541/Intrusion-Global-Threshold.pdf