SNOW-CSA Database Administration and CMDB Practice Question
This SNOW-CSA practice question tests your understanding of database administration and cmdb. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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?
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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related concept
Read the scenario before looking for a memorised answer.
✗
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates 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.
Detailed technical explanation
How to think about this question
The IRE uses a set of reconciliation rules that evaluate the 'source' field of each CI record, applying a priority order (e.g., Discovery > SCCM > manual imports) to determine which attribute values are authoritative. Under the hood, the IRE processes incoming CI data through a pipeline that includes identification, reconciliation, and deduplication, using the 'ReconciliationDefinition' table to store source priority and attribute-level rules. In a real-world scenario, if Discovery reports a 'serial_number' and SCCM reports a different value, the reconciliation rule ensures Discovery's value is kept if it is marked as authoritative for that attribute.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the SNOW-CSA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Database Administration and CMDB — This question tests Database Administration and CMDB — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 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.
What should I do if I get this SNOW-CSA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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