SNOW-CAD Core Application Development Practice Question
A company has a custom table 'u_incident_task' that extends 'task'. The developer wants to add a field 'u_approval' that is a reference to 'sysapproval_approver'. Which method is the correct way to create this field?
⚠ Common exam trap
Many exam-takers confuse 'Reference field' with 'List field' or 'Choice field', mistakenly thinking a List can store a single reference or that a Choice can dynamically pull values from another table, when in fact only a Reference field provides the correct relational link and sys_id storage mechanism.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a 'Reference' field and set the reference table to 'sysapproval_approver'.
A Reference field is designed to create a link from one table to another, storing the sys_id of the target record. Since 'u_approval' needs to point to a specific record in the 'sysapproval_approver' table, a Reference field with the reference table set to 'sysapproval_approver' is the appropriate method. This ensures referential integrity and allows the platform to resolve display values and enforce relationships.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a 'List' field type and set the table to sysapproval_approver.
Why it's wrong here
'List' is not a valid field type in ServiceNow.
- ✓
Create a 'Reference' field and set the reference table to 'sysapproval_approver'.
Why this is correct
This creates a proper reference to the sysapproval_approver table.
- ✗
Create a 'Reference' field and set the table to 'task' and the reference field to 'sysapproval_approver'.
Why it's wrong here
The reference field should point to the table, not a field.
- ✗
Create a 'Choice' field and populate it with sysapproval_approver values.
Why it's wrong here
Choice fields are for static lists, not dynamic references.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SNOW-CAD 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-CAD exam.