What does an intrusion detection system (IDS) primarily monitor?

An intrusion detection system (IDS) primarily monitors network activities for malicious actions. The main function of an IDS is to detect potential security breaches, including unauthorized access or misuse of the network and its resources. By analyzing traffic patterns and monitoring behavior on a network, the IDS can identify signs of cyber threats, such as attempted intrusions or the presence of malware.

This monitoring can occur in real-time, allowing for immediate alerts to system administrators who can then take appropriate action to mitigate potential damage. An IDS plays a crucial role in overall network security by providing visibility into ongoing activities and enabling a proactive response to security incidents.

In contrast, the other options focus on specific areas of security or system operation that do not align with the primary purpose of an IDS. Data storage methods pertain to how data is stored and managed, user password strength is about the robustness of authentication measures, and software installation processes relate to application management, none of which are the focus of an IDS's monitoring capabilities.