Exam CIS-DF Topic 1 Question 111 Discussion

Actual exam question for ServiceNow's CIS-DF exam
Question #: 111
Topic #: 1
A Configuration Manager has configured multiple data sources that are all authorized to update the same class and the same set of class attributes in the CMDB.
What can the Configuration Manager do to control which data source should be the authoritative source of truth for a specific class or set of class attributes?

Suggested Answer: A Vote an answer

In ServiceNow, controlling source precedence when multiple authorized data sources update the same CI attributes is a core responsibility of Identification and Reconciliation Engine (IRE) governance.
The correct and supported method is to assign priority to each data source in reconciliation rules.
Reconciliation rules determine which source wins when multiple sources attempt to update the same attribute on a CI. By defining source precedence, the Configuration Manager ensures that the most authoritative system of record (for example, Discovery over manual imports, or HR systems over spreadsheets) consistently controls specific attributes or classes.

by Truda at May 14, 2026, 10:03 PM

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