Final answer:
Nessus Agents are indeed lightweight scanners installed on endpoints to conduct vulnerability scans without heavy resource usage, which is true.
Step-by-step explanation:
The statement that Nessus Agents are lightweight Nessus scanners installed on the endpoint is true. Nessus Agents enable scanning of endpoint devices to identify vulnerabilities without requiring ongoing host credentials or the need to prepare for a network scan. They are designed to be unobtrusive, consuming minimal resources on the host machine, and they communicate with the Nessus server to provide scanning results. These agents are especially useful for scanning devices that are not always connected to the corporate network, such as laptops of remote workers.