What does Tenable Core + Nessus represent?

Tenable Core + Nessus represents a pre-built virtual image that is specifically designed to streamline the deployment of Nessus, Tenable's vulnerability assessment solution. This combination allows users to quickly and effectively set up a vulnerability assessment environment without the need for extensive configuration or software compilation.

Utilizing a pre-built virtual image simplifies the process for organizations that seek to implement Nessus within their security posture, as they can take advantage of predefined settings and environment configurations tailored to optimize the functionality of the Nessus tool. This approach is particularly beneficial for environments where rapid deployment is crucial, as it minimizes the time and resources needed to bring the solution online.

The other options do not accurately describe Tenable Core + Nessus in this context. It is not a cloud service, as its primary function is as a local deployment solution. It also is not a networking protocol, as networking protocols facilitate communication between devices rather than serve as a security assessment tool. Lastly, while Nessus is not open-source, the pre-built image itself is a proprietary product designed for ease of use and deployment, distinguishing it from open-source tools.