The answer is to set the 'Roles' property on the widget instance within the page designer. This is correct because the widget instance's Roles property provides a declarative, no-code mechanism for Service Portal widget role-based visibility, directly controlling which user roles can see that specific widget on a given page without needing custom ACLs or client-side scripting. On the ServiceNow Certified Application Developer CAD exam, this concept tests your understanding of portal-level security versus record-level security, often appearing as a distractor where developers mistakenly try to apply ACLs to a widget or use a user condition script. A common trap is thinking you need to modify the widget's definition itself, but the instance-level Roles property is the intended approach for per-page visibility. Memory tip: Think of it as a "bouncer at the door" for each widget instance—set the role list on the instance, not the widget template.
SNOW-CAD User Interface Development Practice Question
This SNOW-CAD practice question tests your understanding of user interface 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.
When configuring a Service Portal page, a developer wants to ensure that a specific widget appears only to users with the 'itil' role. Which approach should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the 'Roles' property on the widget instance within the page designer.
Option C is correct because the 'Roles' property on a widget instance within the Service Portal page designer directly controls which roles can view that specific widget. This is the intended declarative approach for role-based visibility at the widget instance level, without requiring custom scripting or ACLs.
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.
✗
Pass a role check from the server script to the client controller via widget options.
Why it's wrong here
Widget options do not enforce security.
✗
Write an Access Control Rule (ACL) on the widget's table to restrict access.
Why it's wrong here
ACLs control data access, not UI widget visibility.
✓
Set the 'Roles' property on the widget instance within the page designer.
Why this is correct
The Roles property restricts widget visibility to specified roles.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a UI Policy on the portal table that hides the widget based on user roles.
Why it's wrong here
UI Policies do not apply to Service Portal.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse ACLs (which control data access) with widget instance visibility, or incorrectly think UI Policies can be applied to portal widgets, when in fact the 'Roles' property is the dedicated mechanism for this exact use case.
Detailed technical explanation
How to think about this question
The 'Roles' property on a widget instance is evaluated server-side during page rendering; if the current user lacks the specified role, the widget is not included in the HTML sent to the browser, providing both security and performance benefits. This is distinct from client-side hiding, which could be bypassed. In real-world scenarios, this approach is used to show admin-only dashboards or ITIL-specific metrics without exposing them to end users.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
User Interface Development — This question tests User Interface Development — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the 'Roles' property on the widget instance within the page designer. — Option C is correct because the 'Roles' property on a widget instance within the Service Portal page designer directly controls which roles can view that specific widget. This is the intended declarative approach for role-based visibility at the widget instance level, without requiring custom scripting or ACLs.
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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Question Discussion
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