- A
The script include was made private.
Why wrong: Would cause 'cannot access' error, not undefined.
- B
The script include's ACLs changed.
Why wrong: ACLs do not affect server-side script execution.
- C
The script include's function signature changed.
Function parameter count or name change leads to undefined errors on call.
- D
The script include's scope changed.
Why wrong: Scope change causes access issues, not undefined.
Question 45 of 500
SNOW-CAD Practice Question: Automating application logic with business rules and scripts
This SNOW-CAD practice question tests your understanding of automating application logic with business rules and scripts. 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.
A script include is defined as a public static function and is called from multiple business rules. After an upgrade, some business rules start failing with 'undefined' errors. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 script include's function signature changed.
Option C is correct because if the function signature changed (e.g., parameters or return type), existing calls to the script include would fail with 'undefined' errors. Option A would cause 'not found' errors, not undefined. Option B: ACLs do not affect server-side execution. Option D: scope change could cause access errors or 'not found', not typically 'undefined'.
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 script include was made private.
Why it's wrong here
Would cause 'cannot access' error, not undefined.
- ✗
The script include's ACLs changed.
Why it's wrong here
ACLs do not affect server-side script execution.
- ✓
The script include's function signature changed.
Why this is correct
Function parameter count or name change leads to undefined errors on call.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
- ✗
The script include's scope changed.
Why it's wrong here
Scope change causes access issues, not undefined.
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.
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FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Automating application logic with business rules and scripts — This question tests Automating application logic with business rules and scripts — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The script include's function signature changed. — Option C is correct because if the function signature changed (e.g., parameters or return type), existing calls to the script include would fail with 'undefined' errors. Option A would cause 'not found' errors, not undefined. Option B: ACLs do not affect server-side execution. Option D: scope change could cause access errors or 'not found', not typically 'undefined'.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jun 24, 2026
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