an ids (intrusion detection system) has been installed in your organization as a stand-alone device to monitor network traffic and to generate alerts about suspicious activities. you as a network analyst have been assigned to check the effectiveness of the device. you notice that the effectiveness of the ids has significantly come down since its installation because it has not been updated. which of the following processes will you use in updating the ids? 1. Port mirroring
2. TAP
3. FIM
4. Signature Management