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.
An administrator notices that a reference field on the cmdb_ci table, 'vendor', points to the 'core_company' table. However, some users report that they cannot select certain companies in the reference field. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The 'vendor' field has a reference qualifier that filters companies
Option C is correct because reference qualifiers are used to filter the records displayed in a reference field. If the 'vendor' field has a reference qualifier condition (e.g., 'active=true' or 'vendor_type=hardware'), only companies meeting that condition will appear in the dropdown, preventing users from selecting certain companies. This is the most likely cause when users cannot see specific records in a reference field.
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.
✗
The 'display field' property is incorrectly configured
Why it's wrong here
Display field affects what is shown, not which records are selectable.
✗
The 'vendor' field is marked as mandatory
Why it's wrong here
Mandatory forces a value but does not restrict options.
✓
The 'vendor' field has a reference qualifier that filters companies
Why this is correct
Reference qualifiers limit the selectable records in a reference field.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The database view permission is set to 'none' for some users
Why it's wrong here
View permission on the table would prevent seeing the field, not restrict selection.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse reference qualifiers (which filter available records) with display fields (which control what is shown in the field) or mandatory settings (which enforce data entry), leading them to pick option A or B instead of C.
Trap categories for this question
Command / output trap
Display field affects what is shown, not which records are selectable.
Detailed technical explanation
How to think about this question
Reference qualifiers in ServiceNow are evaluated server-side using GlideRecord queries, and they can include conditions on the referenced table, scripted conditions, or even conditions on the current record (e.g., 'vendor.category=current.u_category'). This allows dynamic filtering based on other field values. A common real-world scenario is filtering the 'vendor' field to only show companies with 'vendor=true' in the core_company table, ensuring only actual vendors appear.
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: The 'vendor' field has a reference qualifier that filters companies — Option C is correct because reference qualifiers are used to filter the records displayed in a reference field. If the 'vendor' field has a reference qualifier condition (e.g., 'active=true' or 'vendor_type=hardware'), only companies meeting that condition will appear in the dropdown, preventing users from selecting certain companies. This is the most likely cause when users cannot see specific records in a reference field.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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