Which Tenable product is the easiest to deploy for scanning public IPs?

The correct answer is Nessus Professional because it is specifically designed for individual users and small teams, making it the most straightforward option for scanning public IPs. It offers a simple installation process and user-friendly interface that allows security professionals to rapidly deploy and conduct vulnerability assessments without the complexity or extensive setup that other products may require.

Nessus Professional supports various types of scans, including external and public IP scans, and provides a robust set of vulnerability detection capabilities. Additionally, its licensing model allows for easy scalability, which is beneficial for organizations needing to assess multiple public IPs without significant overhead or complexity.

In contrast, Tenable.sc is primarily designed for larger enterprise environments with more complex needs, requiring more significant infrastructure and configuration for deployment. Tenable.io also features extensive capabilities for cloud-based vulnerability management but can also complicate initial setup due to its broader enterprise features. Tenable Nessus Manager is an advanced offering that allows for centralized management of Nessus scanners, which adds another layer of complexity in deployment, compared to Nessus Professional.

Hence, for simplicity and immediate capability in scanning public IPs, Nessus Professional stands out as the easiest choice.