SNOW-CAD User Interface Development Practice Question
This SNOW-CAD practice question tests your understanding of user interface development. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Exhibit
Refer to the exhibit.
```javascript
// UI Policy Condition Script
function onCondition() {
return gs.getProperty('my.property') == 'true';
}
```
A UI Policy with the above condition script never evaluates to true. What is the issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "never"
Why it matters: Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The script should not be wrapped in a function; it should directly be the condition expression.
Option B is correct because UI Policy condition scripts should not be wrapped in a function; the entire script is the condition expression. The code should directly return the property comparison, not define a function. Option A is wrong because gs.getProperty is allowed in UI Policy conditions (server-side). Option C is wrong because there is no evidence of a misspelling. Option D is wrong because UI Policies are not related to AngularJS.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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 condition must be written in AngularJS to work in UI16.
Why it's wrong here
UI Policies do not use AngularJS.
✗
The property name is misspelled as 'my.property' but should be 'my_property'.
Why it's wrong here
There is no indication of a misspelling; the property may exist.
✗
gs.getProperty() is not permitted in UI Policy scripts.
Why it's wrong here
UI Policy scripts run server-side and can use gs.
✓
The script should not be wrapped in a function; it should directly be the condition expression.
Why this is correct
UI Policy condition scripts are evaluated as the script itself, not a function call.
Clue confirmation
The clue word "never" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SNOW-CAD ACL questions on filtering logic and placement.
User Interface Development — This question tests User Interface Development — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The script should not be wrapped in a function; it should directly be the condition expression. — Option B is correct because UI Policy condition scripts should not be wrapped in a function; the entire script is the condition expression. The code should directly return the property comparison, not define a function. Option A is wrong because gs.getProperty is allowed in UI Policy conditions (server-side). Option C is wrong because there is no evidence of a misspelling. Option D is wrong because UI Policies are not related to AngularJS.
What should I do if I get this SNOW-CAD question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SNOW-CAD ACL questions on filtering logic and placement.
Are there clue words in this question I should notice?
Yes — watch for: "never". Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
What is the key concept behind this question?
Standard ACLs match source addresses.
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