Automatic relationship creation is fundamental to maintaining a service-aware and trustworthy CMDB. In ServiceNow, this capability is primarily delivered by Discovery and Service Mapping.

Discovery (Option C) automatically identifies infrastructure components—such as servers, network devices, and storage—and creates technical relationships between them (for example, “runs on,” “connected to,” or “depends on”). These relationships form the backbone of infrastructure dependency mapping.

Service Mapping (Option B) builds on Discovery by creating application- and service-level relationships. It maps how application components interact across servers, databases, and middleware, resulting in accurate Application Service models aligned with CSDM. These relationships are created and maintained automatically as the environment changes.

Option A (IntegrationHub ETL) focuses on data ingestion and transformation; it does not inherently create or maintain relationships unless explicitly scripted. Option D (Workflow Studio) orchestrates processes and automations but does not discover or infer CI relationships.

Therefore, the ServiceNow solutions that create automatic relationships are Service Mapping and Discovery, making Options B and C correct.