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.
A user is able to view records in the Incident table but cannot edit them. Which ACL type is preventing the edit?
write
Write ACL controls the ability to update records.
read
Why wrong: Read ACL allows viewing, not editing.
create
Why wrong: Create ACL controls inserting new records.
delete
Why wrong: Delete ACL controls deleting records.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
write
The correct answer is A (write). In ServiceNow, the write ACL controls the ability to update or edit existing records. Since the user can view records (read ACL allows this) but cannot edit them, the write ACL is the one blocking the operation. The write ACL is evaluated when a user attempts to modify a record after it has been created.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
write
Why this is correct
Write ACL controls the ability to update records.
Related concept
Read the scenario before looking for a memorised answer.
read
Why it's wrong here
Read ACL allows viewing, not editing.
create
Why it's wrong here
Create ACL controls inserting new records.
delete
Why it's wrong here
Delete ACL controls deleting records.
Common exam traps
The trap here is that candidates often confuse the write ACL with the read ACL, thinking that if they can see the record, they should be able to edit it, but ServiceNow separates these permissions distinctly.
Detailed technical explanation
ServiceNow evaluates ACLs in a specific order: first the table-level ACL, then field-level ACLs. For an edit operation, the system checks the write ACL on the table; if it fails, the user cannot update any fields. A common subtlety is that a user might have write access on the table but be blocked by a field-level write ACL on a specific field, which would prevent editing that field but not the entire record.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Application Rules, ACL and Notifications — This question tests Application Rules, ACL and Notifications — Read the scenario before looking for a memorised answer..
The correct answer is: write — The correct answer is A (write). In ServiceNow, the write ACL controls the ability to update or edit existing records. Since the user can view records (read ACL allows this) but cannot edit them, the write ACL is the one blocking the operation. The write ACL is evaluated when a user attempts to modify a record after it has been created.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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