What is a common feature of the Vulnerability Summary analysis tool?

The correct answer highlights a key functionality of the Vulnerability Summary analysis tool, which is its ability to count and display the number of vulnerabilities associated with each host. This feature is essential for security professionals as it provides a clear view of the security posture of each host within the environment. By quantifying vulnerabilities, organizations can prioritize their remediation efforts effectively, focusing on hosts with the highest vulnerability counts first. This capability transforms raw vulnerability data into actionable insights, allowing for informed decision-making and resource allocation in an organization's security strategy.

In contrast, while it may seem advantageous for a tool to list hosts by their operating system or summarize patch management status, these tasks are not the primary focus of the Vulnerability Summary analysis tool. Similarly, providing remediation strategies for each host can be more related to a different context or tool rather than summarizing vulnerabilities directly. Hence, counting the vulnerabilities is a defining characteristic that aligns perfectly with the tool's core objectives.