SNOW-CSA Application Rules, ACL and Notifications Practice Question
This SNOW-CSA practice question tests your understanding of application rules, acl and notifications. 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.
A developer wants to create a Scripted REST API endpoint that returns data from a custom table. The endpoint must only be accessible to users with the 'api_user' role. Which of the following is the best practice to enforce this restriction?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Define a read ACL on the custom table that requires the 'api_user' role.
Option D is correct because the best practice for restricting access to a Scripted REST API endpoint in ServiceNow is to use an ACL (Access Control List) on the underlying table. When the endpoint is set to 'Requires authentication', the platform automatically evaluates table-level ACLs for each record operation. By defining a read ACL that requires the 'api_user' role, you enforce role-based access at the data layer, which is more secure and maintainable than checking roles in script.
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.
✗
Add a condition in the script that checks gs.hasRole('api_user') for each request.
Why it's wrong here
Wrong: This is per-script and not enforced at database level.
✗
Set the system property 'glide.service.catalog.enforce_acl' to true.
Why it's wrong here
Wrong: This property applies to service catalog, not REST APIs.
✗
Use a 'read' ACL on the table and set the endpoint to 'Requires authentication'.
Why it's wrong here
Wrong: Requires authentication only checks if logged in, not role.
✓
Define a read ACL on the custom table that requires the 'api_user' role.
Why this is correct
Correct: ACLs provide table-level security.
Clue confirmation
The clue word "best" in the question point toward this answer.
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 often confuse 'Requires authentication' with role-based access control, assuming that authentication alone is sufficient to restrict access to specific roles, when in fact a separate ACL is required to enforce the role check.
Detailed technical explanation
How to think about this question
Under the hood, ServiceNow's ACL engine evaluates conditions at the database layer before data is returned, using the 'Condition Builder' and scripted conditions. For Scripted REST APIs, the platform automatically enforces table-level ACLs when the endpoint is configured with 'Requires authentication' and the script uses GlideRecord or similar methods. A common subtlety is that if the script uses GlideAggregate or direct SQL queries, ACLs may not be enforced unless explicitly checked, making ACL-based control more reliable.
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.
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: Define a read ACL on the custom table that requires the 'api_user' role. — Option D is correct because the best practice for restricting access to a Scripted REST API endpoint in ServiceNow is to use an ACL (Access Control List) on the underlying table. When the endpoint is set to 'Requires authentication', the platform automatically evaluates table-level ACLs for each record operation. By defining a read ACL that requires the 'api_user' role, you enforce role-based access at the data layer, which is more secure and maintainable than checking roles in script.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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