SNOW-CSA Database Administration and CMDB Practice Question
A company is using multiple data sources (Discovery, SCCM, and manual imports) to populate the CMDB. They notice that some CI attributes are being overwritten incorrectly. Which feature should be used to define which data source is authoritative for specific attributes?
⚠ Common exam trap
Watch out — candidates often confuse 'Data Source' configuration with reconciliation rules, assuming that simply defining a data source will automatically resolve conflicts, when in fact the IRE's reconciliation rules are required to explicitly set attribute-level authority.
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
✓
Identification and Reconciliation Engine (IRE) with reconciliation rules
The Identification and Reconciliation Engine (IRE) with reconciliation rules is the correct feature because it allows administrators to define which data source is authoritative for specific CI attributes. When multiple sources populate the CMDB, reconciliation rules determine the priority of data sources, ensuring that attributes from a higher-priority source overwrite those from lower-priority sources, preventing incorrect overwrites.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Identification and Reconciliation Engine (IRE) with reconciliation rules
Why this is correct
IRE reconciliation rules define which source is authoritative for each attribute.
- ✗
CMDB Data Source rules
Why it's wrong here
Not a standard feature in ServiceNow.
- ✗
Import set transform maps
Why it's wrong here
Transform maps are for import, not for ongoing reconciliation.
- ✗
Business rules with condition on source field
Why it's wrong here
Possible but not the intended solution; IRE is the recommended approach.
Go deeper
Related to this question
About these practice questions
One of 504 original SNOW-CSA practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SNOW-CSA practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CSA exam.