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.
An organization is planning to implement CMDB for a large-scale environment with multiple data sources. They need to ensure that the most trustworthy data source takes precedence when conflicts occur. Which feature should they use?
Identification & Reconciliation engine
Why wrong: This engine handles CI identification, not source priority.
Reconciliation
Why wrong: Reconciliation resolves conflicts but does not set source priority by itself.
Set source precedence in the CI class manager for each CI
Why wrong: Source precedence is not set per CI but globally.
Data Source Priority
This feature allows setting precedence for data sources.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Data Source Priority
Data Source Priority (Option D) is the correct feature because it allows administrators to define a hierarchy of data sources in the CMDB, ensuring that when multiple sources provide conflicting attribute values for the same CI, the source with the highest priority (lowest numeric value) is trusted and its data is used. This directly addresses the requirement to make the most trustworthy data source take precedence in a large-scale, multi-source environment.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Identification & Reconciliation engine
Why it's wrong here
This engine handles CI identification, not source priority.
Reconciliation
Why it's wrong here
Reconciliation resolves conflicts but does not set source priority by itself.
Set source precedence in the CI class manager for each CI
Why it's wrong here
Source precedence is not set per CI but globally.
Data Source Priority
Why this is correct
This feature allows setting precedence for data sources.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse the Identification & Reconciliation engine (which performs the conflict detection) with the Data Source Priority feature (which dictates which source wins), leading them to select Option A instead of D.
Detailed technical explanation
Under the hood, Data Source Priority works by assigning a numeric priority value (e.g., 1 being highest) to each data source defined in the CMDB. When the Identification & Reconciliation engine processes incoming data, it checks the priority of the source; if a conflict exists, the value from the source with the lowest priority number overwrites the existing value. In real-world scenarios, this is critical when integrating authoritative sources like ServiceNow Discovery (priority 10) with less reliable spreadsheets (priority 100), ensuring Discovery data always wins without manual intervention.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Database Administration and CMDB — This question tests Database Administration and CMDB — Read the scenario before looking for a memorised answer..
The correct answer is: Data Source Priority — Data Source Priority (Option D) is the correct feature because it allows administrators to define a hierarchy of data sources in the CMDB, ensuring that when multiple sources provide conflicting attribute values for the same CI, the source with the highest priority (lowest numeric value) is trusted and its data is used. This directly addresses the requirement to make the most trustworthy data source take precedence in a large-scale, multi-source environment.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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