What are the 2 core tables that all other tables extend from?

What are the 2 core tables that all other tables extend from?

• A. Task and CMDB
• B. Incident and Problem
• C. User and Group
• D. Configuration and Schema

Answer: (A)

In ServiceNow, data is built through table inheritance, where many tables derive from one or two key parent tables. The two main parents are Task and CMDB. The Task parent provides common fields and behaviors for work items, so ITSM records like incidents, problems, and changes extend Task and inherit fields such as assignment details, state, priority, and work notes. The CMDB parent serves as the foundation for configuration item data, so CMDB-related tables extend CMDB base tables to share structure and relationships across all configuration items. Because most tables in the platform either represent work items or configuration items, they extend from one of these two roots.

In ServiceNow, data is built through table inheritance, where many tables derive from one or two key parent tables. The two main parents are Task and CMDB. The Task parent provides common fields and behaviors for work items, so ITSM records like incidents, problems, and changes extend Task and inherit fields such as assignment details, state, priority, and work notes. The CMDB parent serves as the foundation for configuration item data, so CMDB-related tables extend CMDB base tables to share structure and relationships across all configuration items. Because most tables in the platform either represent work items or configuration items, they extend from one of these two roots.