SNOW-CAD Core Application Development Practice Question
A developer is troubleshooting a UI policy that sets a field to mandatory when another field equals 'Yes'. The UI policy works on desktop but not on the mobile app. What is the most likely cause?
⚠ Common exam trap
ServiceNow often tests the distinction between 'Run on desktop' and 'Run on mobile' settings, trapping candidates who assume UI policies automatically apply to all platforms or who confuse this with field availability or table differences.
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
✓
The UI policy is set to 'Run on desktop' only.
UI policies have a 'Run on desktop' and 'Run on mobile' checkbox. By default, a new UI policy is set to run on desktop only. If the developer did not explicitly check the 'Run on mobile' option, the policy will not execute on the mobile app, causing the mandatory behavior to be absent on mobile while working on desktop.
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 UI policy is set to 'Run on mobile' but the script is incompatible.
Why it's wrong here
Incompatible script would likely cause an error, not silent failure.
- ✗
The field is not available on the mobile form.
Why it's wrong here
If the field is not present, the policy might not apply, but the most common reason is the run option.
- ✗
The mobile app uses a different table.
Why it's wrong here
Mobile app typically uses the same table but a different user interface.
- ✓
The UI policy is set to 'Run on desktop' only.
Why this is correct
UI policies have separate run options for desktop and mobile.
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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.