Back to ServiceNow Certified Application Developer CAD questions

Scenario-based practice

Troubleshooting Scenario Questions

Practise ServiceNow Certified Application Developer CAD practice questions — original exam-style scenarios covering every exam domain, with detailed explanations, wrong-answer analysis, and common exam traps.

15
scenario questions
SNOW-CAD
exam code
ServiceNow
vendor

Scenario guide

How to approach troubleshooting scenario questions

These questions describe a network symptom and ask you to identify the root cause or the correct fix. They appear across all certification exams and reward systematic thinking over memorisation. The best candidates follow a consistent troubleshooting framework even under time pressure.

Quick answer

Troubleshooting Scenario Questions questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Related practice questions

Related SNOW-CAD topic practice pages

Scenario questions usually connect to one or more exam topics. Use these links to review the underlying concepts behind the scenario.

Practice set

Practice scenarios

Question 1hardmultiple choice
Study the full ACL explanation →

A developer is troubleshooting a business rule in a scoped application that is not triggering. The rule is set to run 'before' query, with condition 'current.state == 1'. The table has read ACLs that restrict access. What is the most likely reason the business rule is not executing?

Question 2easymultiple choice
Full question →

A ServiceNow admin is troubleshooting a data import from an external database via JDBC. The import runs successfully but only loads partial data. Which is the most likely cause?

Question 3hardmultiple choice
Full question →

A developer is troubleshooting a Service Portal widget that loads slowly. The widget uses a server script that queries a large table without any filters. Which design change would most improve performance?

Question 4mediummultiple choice
Full question →

In a large enterprise environment, the ServiceNow instance is heavily customized. A business rule on the Change Request [change_request] table runs on after update to initiate a complex workflow involving multiple approvals and updates to Configuration Items (CIs). Recently, the IT operations team noticed that the workflow fails to start for many change requests. The system logs show the error: "Business rule script error: Cannot read property 'sys_id' of null". The developer inspects the business rule script and sees the following code snippet:

var task = new GlideRecord('task');

task.get(current.sys_id);

var relatedCI = task.cmdb_ci;

// The rest of the script uses relatedCI to update the CI's status. The developer knows that change requests are not stored in the task table; they are in change_request. However, the script was written by a previous developer and has been working for months. The developer must fix the script to ensure the workflow starts correctly. Which action should the developer take?

Question 5hardmulti select
Full question →

A developer is creating a business rule to automatically assign tasks to a specific group based on the category. The rule is set to run before insert and update on the Task table. The script uses current.assignment_group = 'IT Support'. However, the assignment group is not being set on update even though it works on insert. Which three potential causes should the developer investigate? (Choose three.)

Question 6hardmulti select
Full question →

Which TWO are common issues when troubleshooting a failed LDAP import?

Question 7hardmultiple choice
Study the full ACL explanation →

A developer is troubleshooting an integration where an inbound SOAP message fails to insert a record into the 'change_request' table. The SOAP message is well-formed and the user has the 'change_manager' role. The ACL for the 'change_request' table allows write to 'admin' and 'change_manager'. What is the most likely cause?

Question 8hardmultiple choice
Full question →

A developer is troubleshooting a client script that hides a field on a form when a condition is met, but it is not working. The script is attached to the 'g_form' object in Studio. What is the most likely reason?

Question 9hardmultiple choice
Full question →

A developer needs to debug an issue where a client script is not triggering when a field changes. What is the most efficient first step in troubleshooting within Studio?

Question 10mediummulti select
Full question →

A developer is troubleshooting an issue where a business rule is not firing. Which TWO steps should the developer take to diagnose the problem? (Choose two.)

Question 11hardmultiple choice
Full question →

A company wants to create a custom homepage for their service portal that displays three different data sources in a single view. The design must ensure that if one data source fails to load, the other two continue to function. Which implementation approach aligns best with this requirement?

Question 12easymultiple choice
Full question →

A user reports that a field 'Cost Center' is not visible on a form, but the UI Policy condition to show it is met. What is the first step in troubleshooting?

Question 13hardmultiple choice
Full question →

A UI Macro that displays a custom header is not appearing on the form. The macro is referenced in a UI16 theme. What is the first troubleshooting step?

Question 14easymultiple choice
Full question →

A UI Policy is used to make a field mandatory when another field has a specific value. The policy is not triggering. What is the first step to troubleshoot?

Question 15easymultiple choice
Full question →

The business rule above is intended to set the category of an incident based on the correlation_id. However, it is not working as expected. What is the most likely cause?

Exhibit

Refer to the exhibit.

Business Rule: 'Set Category on Insert'
Table: [incident]
When to run: Before insert
Condition: true
Script:
(function executeRule(current, previous /*null when async*/) {
    var cat = new GlideRecord('sys_choice');
    cat.addQuery('name', 'incident');
    cat.addQuery('element', 'category');
    cat.addQuery('value', current.correlation_id.toString());
    cat.query();
    if (cat.next()) {
        current.category = cat.value;
    }
})(current, previous);

These SNOW-CAD practice questions are part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style SNOW-CAD questions with detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics.