TheConfiguration Management Database (CMDB)inServiceNowstores information aboutconfiguration items (CIs)and theirrelationships.
cmdb (Configuration Management Database)The main parent table for all CMDB-related data.
Storescore configuration item (CI) data.
Other CMDB-related tables inherit from this table.
cmdb_ci (Configuration Items Table)Stores individual configuration items (CIs).
Every CI (e.g., servers, network devices, software) is stored in this table or one of its child tables.
This tableextendscmdb.
cmdb_rel_ci (CI Relationships Table)Stores relationships between CIs.
Defines how CIsconnect to each other(e.g., "server hosts application").
Helps withService Mapping and Impact Analysis.
The Three Key CMDB Tables:
A. omadb_rel_ciIncorrect– Not a standard ServiceNow CMDB table.
B. sn_emdbIncorrect–sn_emdbisnot a CMDB tablein ServiceNow.
C. sn_emdb_ciIncorrect– No such table inServiceNow CMDB architecture.
E. sn_emdb_bakIncorrect– No suchbackup tablein ServiceNow CMDB.
G. emdb_bakIncorrect– No suchServiceNow CMDB tableexists.
Incorrect Answer Choices Analysis:
ServiceNow Docs – CMDB Core Tables????CMDB Tables Overview
ServiceNow Docs – Understanding CI Relationships????CMDB Relationship Tables
Official ServiceNow Documentation References:
