In Metasploit, which identifiers link a service or vulnerability record to its host?

• A. ip/address
• B. host_id and service_id
• C. os_name
• D. port

Answer: (B)

Relational links in Metasploit’s database use IDs to connect records. Each host has a unique id, and every service is stored with the host’s id (host_id) to show which host it belongs to. A vulnerability is tied to a specific service via service_id, and that service already points back to its host with host_id. So using both host_id and service_id lets you precisely connect a vulnerability (or a service) to its exact host. IP address or OS name are descriptive fields, and a port is part of the service, not the linking mechanism.