Final answer:
A Nessus Network Monitor is not simply a Network Intrusion Detection System (NIDS). It is a vulnerability scanner and network security tool that actively scans and assesses a network's security posture.
Step-by-step explanation:
A Nessus Network Monitor is not simply a Network Intrusion Detection System (NIDS). It is a vulnerability scanner and network security tool that is used to identify security weaknesses and misconfigurations in a network.
While a NIDS focuses on detecting and analyzing potential intrusions, the Nessus Network Monitor goes beyond that by actively scanning and assessing a network's security posture.
Therefore, the statement "A Nessus Network Monitor is simply a Network Intrusion Detection System (NIDS)" is false.