Question 69 of 510
Application Rules, ACL and NotificationsmediumMultiple ChoiceObjective-mapped

SNOW-CSA Application Rules, ACL and Notifications Practice Question

This SNOW-CSA practice question tests your understanding of application rules, acl and notifications. 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

(function evaluateRule(current, user) {
    if (current.caller_id == user.sys_id) {
        return true;
    }
    return false;
})(current, user);

Refer to the exhibit. This ACL is applied to the Incident table for 'write' operation. A user is editing their own incident but is still denied. What is the issue?

Question 1mediummultiple choice
Study the full ACL explanation →

Exhibit

(function evaluateRule(current, user) {
    if (current.caller_id == user.sys_id) {
        return true;
    }
    return false;
})(current, user);

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 returns true but another ACL denies.

Option D is correct because when an ACL is applied to a table for 'write' operations, multiple ACLs can evaluate the same operation. Even if one ACL (the one shown) returns true, another ACL on the same table for the same operation may return false, causing the overall write to be denied. The exhibit shows a script that checks `current.caller_id == gs.getUserID()`, which should allow the user to edit their own incident, but another ACL with a higher order or a different condition is blocking the write.

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.

  • The script returns false because current.caller_id is not the user's sys_id.

    Why it's wrong here

    For the user's own incident, caller_id should match.

  • The ACL is set to 'read' instead of 'write'.

    Why it's wrong here

    The ACL is configured for write operation.

  • The user does not have the necessary role.

    Why it's wrong here

    No role is required as the script allows access.

  • The script returns true but another ACL denies.

    Why this is correct

    A more specific ACL can override this one.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume a single ACL's result determines access, but ServiceNow evaluates all matching ACLs in order, and a 'false' from any ACL (unless overridden) will deny the operation, even if another ACL returns 'true'.

Detailed technical explanation

How to think about this question

In ServiceNow, ACLs are evaluated in order of their 'Order' field (lower numbers first), and multiple ACLs can apply to the same table and operation. If an ACL returns 'false', the operation is denied unless a subsequent ACL with a higher order returns 'true' and overrides it. However, if any ACL returns 'false' and no overriding ACL exists, the operation is denied, even if another ACL returns 'true'. This is a common source of debugging complexity, especially when inherited ACLs from parent tables or system ACLs are involved.

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.

Related practice questions

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FAQ

Questions learners often ask

What does this SNOW-CSA question test?

Application Rules, ACL and Notifications — This question tests Application Rules, ACL and Notifications — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The script returns true but another ACL denies. — Option D is correct because when an ACL is applied to a table for 'write' operations, multiple ACLs can evaluate the same operation. Even if one ACL (the one shown) returns true, another ACL on the same table for the same operation may return false, causing the overall write to be denied. The exhibit shows a script that checks `current.caller_id == gs.getUserID()`, which should allow the user to edit their own incident, but another ACL with a higher order or a different condition is blocking the write.

What should I do if I get this SNOW-CSA 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 24, 2026

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This SNOW-CSA 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-CSA exam.