Are you planning to take the Security+ exam? If so, make sure you know about IDSs and IPSs.
For example, can you answer this question?
Q. A HIDS reported a vulnerability on a system based on a known attack. After researching the alert from the HIDS, you identify the recommended solution and begin applying it. What type of HIDS is in use?
A. Network-based
B. Signature-based
C. Heuristic-based
D. Anomaly-based
Check out the answer and explanation here.