SERVICENOW-CIS-DISCOVERY CMDB Integration And Maintenance Practice Question
When configuring Data Sources for CMDB reconciliation, which TWO of the following are true regarding the behavior of the Identification and Reconciliation Engine (IRE)?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Data source importance determines which source takes precedence during a reconciliation conflict.
The IRE uses source priority and data source configuration to manage conflicting attribute data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Data source importance determines which source takes precedence during a reconciliation conflict.
Why this is correct
Source priority levels are used by the IRE to determine which data source wins when multiple sources provide conflicting attribute values.
- ✗
Custom data sources require a new Identification Rule for every CI class.
Why it's wrong here
Identification rules are generally class-agnostic or hierarchical, not per-source.
- ✗
IRE ignores data sources that are not explicitly defined in the Identification Rules.
Why it's wrong here
IRE processes data from any source that provides a valid payload.
- ✗
Discovery always has higher priority than manual CMDB updates by default.
Why it's wrong here
Priority is configurable and not always weighted towards Discovery.
- ✓
The IRE allows for the creation of 'Reconciliation Rules' to define which attributes a data source is allowed to write to.
Why this is correct
Reconciliation rules define which data sources can update specific attributes of a CI.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official ServiceNow exam blueprint
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