What is a key feature of the Deep Security Relay?

A key feature of the Deep Security Relay is its ability to distribute security and software updates efficiently across an organization's environment. This functionality is crucial for ensuring that all managed agents are up to date with the latest security patches, threat intelligence, and configurations, thereby maintaining a robust security posture. The relay acts as a centralized hub that reduces the bandwidth load on the network by allowing agents to download updates from it instead of directly from the Trend Micro update servers. This not only optimizes network traffic but also helps ensure consistent and timely deployment of security updates across different endpoints, thus enhancing overall security management.

Options that mention hosting virtual machines, generating reports for compliance audits, or implementing firewall policies focus on different aspects of security management and technology that are not the primary functions of the Deep Security Relay. The relay specifically targets the efficient management and distribution of updates, making option B the correct choice.