Final answer:
A HIDS is a security tool that monitors and analyzes activities on a single computer or host, while a NIDS monitors network traffic across multiple devices.
Step-by-step explanation:
A HIDS (Host-based Intrusion Detection System) is a security tool that monitors and analyzes the activities on a single computer or host to detect and prevent unauthorized access or malicious activities.
It works by analyzing log files, system files, and network traffic to identify patterns or behavior that may indicate a security breach.
A NIDS (Network-based Intrusion Detection System) is a security tool that monitors and analyzes network traffic to detect and prevent unauthorized access or malicious activities.
Unlike HIDS, which focuses on a single host, NIDS monitors network traffic across multiple devices to identify any suspicious or abnormal behavior.
The main difference between HIDS and NIDS is the scope of their monitoring. HIDS focuses on the activities of a single host, while NIDS monitors network traffic across multiple devices.