Quick Answer
The answer is to set the 'Ref qual' property to 'active=true'. This is correct because the reference qualifier on a catalog variable of type 'Reference' acts as a server-side filter, restricting the records displayed in the lookup selector to only those matching the condition you specify. By entering 'active=true', you ensure the field shows only active users from the sys_user table, directly meeting the requirement. On the ServiceNow Certified Application Developer CAD exam, this concept tests your understanding of how to control data visibility in service catalog variables without using scripts or ACLs. A common trap is confusing the 'Default value' or 'Choice' properties with the reference qualifier, but remember that only 'Ref qual' filters the lookup results. A helpful memory tip: think of "Ref qual" as a "quality check" for the reference—it qualifies which records are good enough to appear.
This SNOW-CAD practice question tests your understanding of core application development. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 developer needs to ensure that a catalog variable of type 'Reference' displays only active users from the sys_user table. Which property configuration should be applied to the variable?
Set 'Reference qual' to 'active=true'
Why wrong: The field name is 'Ref qual', not 'Reference qual'.
Set 'Condition' to 'active=true'
Why wrong: There is no 'Condition' field on a reference variable; the correct field is 'Ref qual'.
Set 'Ref qual' to 'active=true'
Ref qual allows a condition to filter the reference list.
Set 'Default value' to 'active=true'
Why wrong: Default value sets an initial value, not a filter condition.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Set 'Ref qual' to 'active=true'
Option C is correct because the 'Ref qual' (Reference qualifier) property on a reference variable allows you to specify a condition to filter the records displayed in the lookup. Setting it to 'active=true' restricts the reference field to show only active users from the sys_user table, ensuring the developer meets the requirement.
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.
Set 'Reference qual' to 'active=true'
Why it's wrong here
The field name is 'Ref qual', not 'Reference qual'.
Set 'Condition' to 'active=true'
Why it's wrong here
There is no 'Condition' field on a reference variable; the correct field is 'Ref qual'.
Set 'Ref qual' to 'active=true'
Why this is correct
Ref qual allows a condition to filter the reference list.
Related concept
Read the scenario before looking for a memorised answer.
Set 'Default value' to 'active=true'
Why it's wrong here
Default value sets an initial value, not a filter condition.
Common exam traps
The trap here is that candidates confuse 'Reference qual' with 'Ref qual' or think 'Condition' is the correct property, when in fact 'Ref qual' is the exact property name used on reference variables in ServiceNow.
Detailed technical explanation
The 'Ref qual' property accepts a condition string (e.g., 'active=true') or a script that returns a condition, which is applied as an encoded query to the reference table. This filtering occurs at the database level, so only matching records are returned in the lookup, improving performance and user experience. In real-world scenarios, you might use a script to dynamically filter based on the current user's department or role.
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-CAD 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
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
The correct answer is: Set 'Ref qual' to 'active=true' — Option C is correct because the 'Ref qual' (Reference qualifier) property on a reference variable allows you to specify a condition to filter the records displayed in the lookup. Setting it to 'active=true' restricts the reference field to show only active users from the sys_user table, ensuring the developer meets the requirement.
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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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A service catalog item has a variable set that includes a reference field to the 'cmdb_ci' table. The requirement is to show only 'Server' type CI's in the reference field. Which approach should be used?
easyWhy B: Option B is correct because a Reference Qualifier on a variable definition allows you to filter the records displayed in a reference field using a condition string. By setting the condition 'sys_class_name=Server', only CI records with that specific sys_class_name will appear, which directly meets the requirement to show only 'Server' type CIs.
Last reviewed: Jun 25, 2026
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