SNOW-CSA Database Administration and CMDB Practice Question
This SNOW-CSA practice question tests your understanding of database administration and cmdb. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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's CMDB has duplicate CIs for the same server due to conflicting identification rules. The admin notices that some CIs are being merged incorrectly. What is the best practice to resolve this issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review and refine the identification rules to ensure uniqueness criteria are correctly defined.
Option C is correct because duplicate CIs in the CMDB arise from conflicting or poorly defined identification rules. The best practice is to review and refine these rules to ensure each CI has a unique set of identifying attributes (e.g., serial number, MAC address, or FQDN). This prevents incorrect merges and maintains data integrity without relying on manual cleanup or timeout adjustments.
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.
✗
Increase the reconciliation engine's timeout value.
Why it's wrong here
Timeout adjustments do not solve conflicts in identification rules.
✗
Run the CI Class Manager to delete duplicate CIs.
Why it's wrong here
Deleting duplicates does not prevent reoccurrence; the underlying rule issue remains.
✓
Review and refine the identification rules to ensure uniqueness criteria are correctly defined.
Why this is correct
This addresses the root cause by correcting the rules that cause misidentification.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable all identification rules and use manual reconciliation.
Why it's wrong here
Disabled rules stop automated deduplication, leading to more duplicates and manual effort.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse symptom fixes (like increasing timeouts or deleting duplicates) with the root cause solution, which is correcting the identification rules that govern CI uniqueness.
Detailed technical explanation
How to think about this question
Identification rules in ServiceNow use a combination of CI identifier fields (e.g., serial_number, mac_address, fqdn) and a precedence order to determine uniqueness. When multiple rules match the same CI, the reconciliation engine applies a 'winner-takes-all' merge based on the rule order and data source priority. Misconfigured rules can cause the engine to treat two separate CIs as the same entity, leading to incorrect merges that corrupt the CMDB's golden record.
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: Review and refine the identification rules to ensure uniqueness criteria are correctly defined. — Option C is correct because duplicate CIs in the CMDB arise from conflicting or poorly defined identification rules. The best practice is to review and refine these rules to ensure each CI has a unique set of identifying attributes (e.g., serial number, MAC address, or FQDN). This prevents incorrect merges and maintains data integrity without relying on manual cleanup or timeout adjustments.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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