In ServiceNow's Configuration Management Database (CMDB), the cmdb table is the base table from which all Configuration Item (CI) tables inherit.
Why is cmdb the Correct Answer?
cmdb is the Parent Table of All CMDB-Related Tables
The cmdb table contains basic attributes shared by all Configuration Items (CIs).
Every CI in ServiceNow inherits from cmdb or one of its child tables.
Hierarchy of CMDB Tables in ServiceNow:
cmdb (Base Table) → Stores general CI data.
cmdb_ci (Stores specific CI details) → Extends cmdb to store devices, applications, and services.
cmdb_rel_ci (Stores relationships between CIs) → Used to track dependencies.
Incorrect Answer Choices Analysis:
A . cmdb_d
❌ Incorrect - No such standard table exists in ServiceNow's CMDB.
B . ucmdb
❌ Incorrect - uCMDB (Universal CMDB) is an HP product, not part of ServiceNow's CMDB.
C . cmdb_rel_ci
❌ Incorrect - This table stores CI relationships, but it is not the base table.
Official ServiceNow Documentation Reference:
ServiceNow Docs - CMDB Core Tables
📖 CMDB Table Structure
ServiceNow Docs - CMDB Best Practices