- A
Create a Client Script that runs on load to update related records.
Why wrong: Client Scripts run on the client and cannot perform server-side updates.
- B
Create an ACL to automatically propagate changes.
Why wrong: ACLs control access, not data propagation.
- C
Create a Business Rule that runs on update of the 'u_asset' table and updates related records.
Business Rules run server-side and can update related records.
- D
Create a UI Policy that sets the location field on related records.
Why wrong: UI Policies only control field attributes on the form.
SNOW-CAD Core Application Development Practice Question
This SNOW-CAD practice question tests your understanding of core application development. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 company has a custom table 'u_asset' with a reference field 'u_location' pointing to 'cmn_location'. When a user changes the location on an asset record, the system must automatically update the location on all related 'u_asset_software' records. Which approach should the developer use?
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 Business Rule that runs on update of the 'u_asset' table and updates related records.
Option C is correct because a Business Rule that runs on the 'update' operation of the 'u_asset' table can directly query and update all related 'u_asset_software' records using GlideRecord. This server-side logic ensures the location change is propagated reliably, regardless of how the asset record is updated (UI, web service, import set, etc.), and it executes within the same database transaction for data consistency.
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.
- ✗
Create a Client Script that runs on load to update related records.
Why it's wrong here
Client Scripts run on the client and cannot perform server-side updates.
- ✗
Create an ACL to automatically propagate changes.
Why it's wrong here
ACLs control access, not data propagation.
- ✓
Create a Business Rule that runs on update of the 'u_asset' table and updates related records.
Why this is correct
Business Rules run server-side and can update related records.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a UI Policy that sets the location field on related records.
Why it's wrong here
UI Policies only control field attributes on the form.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse client-side mechanisms (Client Scripts, UI Policies) with server-side automation, or mistakenly think ACLs can perform data updates, when only a Business Rule can reliably propagate changes across tables on the server side.
Detailed technical explanation
How to think about this question
Under the hood, a Business Rule on the 'u_asset' table with the 'update' trigger can use a GlideRecord query to find all 'u_asset_software' records where the 'u_asset' reference matches the current record, then set the 'u_location' field and call updateMultiple() for efficiency. This approach ensures atomicity: if the Business Rule fails, the entire transaction rolls back, preventing partial updates. In a real-world scenario, this pattern is critical for maintaining referential integrity in asset management, where software entitlements must reflect the physical location of the hardware.
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 security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Business Rule that runs on update of the 'u_asset' table and updates related records. — Option C is correct because a Business Rule that runs on the 'update' operation of the 'u_asset' table can directly query and update all related 'u_asset_software' records using GlideRecord. This server-side logic ensures the location change is propagated reliably, regardless of how the asset record is updated (UI, web service, import set, etc.), and it executes within the same database transaction for data consistency.
What should I do if I get this SNOW-CAD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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