SNOW-CAD Working with Data Practice Question
A developer needs to create a new table in ServiceNow to track project milestones. The table should have a reference field to the Project table and a date field for the milestone date. Which data type should be used for the reference field?
⚠ Common exam trap
ServiceNow often tests the distinction between a data type used in table schema design (Reference) and a server-side API class (GlideRecord), causing candidates to confuse the GlideRecord object with the reference field data type.
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
✓
Reference
In ServiceNow, a reference field is specifically designed to create a relationship between two tables by storing the sys_id of the referenced record. This allows the developer to link a project milestone record to a specific project record in the Project table, enabling dot-walking and data integrity through referential integrity constraints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
GlideRecord
Why it's wrong here
GlideRecord is a server-side class, not a field type.
- ✗
Integer
Why it's wrong here
Integer stores numbers, not references.
- ✗
String
Why it's wrong here
String stores text, not a relationship.
- ✓
Reference
Why this is correct
Reference field links to a record in another table.
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JA
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.