SNOW-CAD Core Application Development — 40 Questions

Question 1

An application has a custom table 'u_project' with a field 'u_status' (choice list: Not Started, In Progress, Completed). The developer wants to prevent any update to the record if the status is 'Completed'. Which approach should be used?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Create a Business Rule with condition 'current.u_status.changesTo("Completed")' and set 'current.setAbortAction(true)' in the script.. A Business Rule with the condition `current.u_status == 'Completed'` (note: the option text mentions `changesTo('Completed')`, but the intended correct condition is equality check) and `current.setAbortAction(true)` aborts any update attempt server-side. This ensures data integrity as the restriction is enforced at the database level, regardless of how the update is initiated. Client-side options (B and D) can be bypassed, and a Database View (A) does not prevent updates to the underlying table.

Answer

Create a Database View that filters out Completed records.

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Create a Client Script that sets the field to read-only when status is Completed.

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Create a UI Policy to disable the entire form when status is Completed.

Question 2

A developer notices that a scheduled job runs but does not execute the script. The job is set to run every hour. The script uses the 'gs.log' function to write messages. The log shows no output. What is the most likely cause?

Accepted Answer

The job condition is set to 'false' so it never triggers.. In ServiceNow, a scheduled job runs when the scheduler triggers it, but the action script only executes if the condition script evaluates to true. If the condition is set to 'false' (e.g., the condition script returns false), the job will appear in the job history as having run, but the action script will not execute, resulting in no 'gs.log' output. Option C is incorrect because an inactive job does not run at all—it will not appear in the job history as having run.

Answer

The job's condition script has a syntax error.

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The 'sys_updated_on' field is not being updated.

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The job is set to 'Inactive'.

Question 3

A developer is building a Flow in Flow Designer that needs to update an incident record when a certain event occurs. The flow uses a 'Update Record' action. However, the incident record is not being updated even though the flow runs without errors. What could be the issue?

Accepted Answer

The flow's application scope does not have write access to the Incident table. In ServiceNow, the application scope defines the permissions available to a flow. If the scope does not have write access to the Incident table, the 'Update Record' action may appear to run without throwing an error but the update is not persisted. This can occur if ACLs are configured to silently deny write operations for that scope. Other options like referencing the wrong table would typically log an error.

Answer

The flow trigger is set to 'On Created' but the incident already existed

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The flow is using a 'Lookup Record' instead of 'Update Record'

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The 'Update Record' action is referencing the wrong table

Question 4

The exhibit shows a business rule script snippet. The business rule is triggered on 'before update' of incident table. When an incident's state is changed to 2 (Resolved), the short_description is set to 'Resolved'. However, the short_description is also being set to 'Resolved' when the state is already 2 and other fields are updated. Which change to the script would fix this issue?

Accepted Answer

Change 'current.state == 2' to 'current.state.changesTo(2)'.. Both options B and D correctly fix the issue. Option B uses `current.state.changesTo(2)`, a GlideRecord method that returns true only when the field's value changes *to* 2. Option D uses `current.state.changes() && current.state == 2`, where `changes()` returns true if the field is being updated (even if to the same value) and then checks the current value is 2. This also prevents triggering when other fields are updated without modifying the state. The original `current.state == 2` is true whenever the state is 2, regardless of change.

Answer

Change the trigger order from 'before' to 'after'.

Answer

Remove the condition and let the script run always.

Question 5

A company has a custom table 'u_asset' with a reference field 'u_location' pointing to 'cmn_location'. When a user changes the location on an asset record, the system must automatically update the location on all related 'u_asset_software' records. Which approach should the developer use?

Accepted Answer

Create a Business Rule that runs on update of the 'u_asset' table and updates related records.. A Business Rule that runs on the 'update' operation of the 'u_asset' table can directly query and update all related 'u_asset_software' records using GlideRecord. This server-side logic ensures the location change is propagated reliably, regardless of how the asset record is updated (UI, web service, import set, etc.), and it executes within the same database transaction for data consistency.

Answer

Create a Client Script that runs on load to update related records.

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Create an ACL to automatically propagate changes.

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Create a UI Policy that sets the location field on related records.

Question 6

A developer needs to create a new application scope. Which of the following is a best practice when defining the scope?

Accepted Answer

Set the application's access level to 'Protected' to prevent other applications from modifying its records.. When defining a new application scope, setting the application's access level to 'Protected' is considered a best practice. This restricts access to the application's resources, preventing other applications from modifying its records. The scope name should be unique and not changed after creation. Using the global scope (B) should be avoided for custom applications, reusing an existing scope name (C) is not allowed, and changing the scope name after creation (D) can cause configuration issues.

Answer

Use the global scope to avoid access restrictions.

Answer

Use a scope name that is already in use to leverage existing configurations.

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Create the scope and later change the name if needed.

Question 7

A developer wants to send an email notification when a new incident is created. Which component should be configured to trigger the notification?

Accepted Answer

Create a Notification record with the condition 'New' and 'Action: record inserted'.. In ServiceNow, the native Notification mechanism is specifically designed to send emails based on conditions like 'New' and 'Action: record inserted'. When a new incident is created, the system evaluates the notification's condition; if it matches, the notification triggers automatically without requiring custom scripting or flow design. This is the standard, out-of-box approach for email alerts on record creation.

Answer

Use Flow Designer to create a flow that sends an email.

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Write a Business Rule that calls the email utility.

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Create an ACL with email action.

Question 8

A developer is creating a catalog item that requires a user to upload a file. Which variable type should be used?

Accepted Answer

Attachment. The Attachment variable type is specifically designed for file uploads in ServiceNow catalog items. It provides a built-in file picker and stores the uploaded file as an attachment on the requested record, enabling users to submit documents directly through the catalog form.

Answer

Multi Line Text

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Single Line Text

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Checkbox

Question 9

A company has a custom table 'u_incident_task' that extends 'task'. The developer wants to add a field 'u_approval' that is a reference to 'sysapproval_approver'. Which method is the correct way to create this field?

Accepted Answer

Create a 'Reference' field and set the reference table to 'sysapproval_approver'.. A Reference field is designed to create a link from one table to another, storing the sys_id of the target record. Since 'u_approval' needs to point to a specific record in the 'sysapproval_approver' table, a Reference field with the reference table set to 'sysapproval_approver' is the appropriate method. This ensures referential integrity and allows the platform to resolve display values and enforce relationships.

Answer

Create a 'List' field type and set the table to sysapproval_approver.

Answer

Create a 'Reference' field and set the table to 'task' and the reference field to 'sysapproval_approver'.

Answer

Create a 'Choice' field and populate it with sysapproval_approver values.

Question 10

A developer needs to create a service catalog variable that allows the user to select multiple values from a predefined list. Which variable type should be used?

Accepted Answer

Multiple Choice (Checkbox). The Multiple Choice (Checkbox) variable type in ServiceNow allows users to select multiple values from a predefined list. This is the only variable type that supports multi-select behavior, which is required when a user needs to choose more than one option from a set of choices.

Answer

Single Line Text

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Radio Button

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Select Box

Question 11

Which TWO of the following are valid ways to create a Business Rule? (Choose two.)

Accepted Answer

Navigate to 'System Definition > Business Rules' and click 'New'.. Navigating to 'System Definition > Business Rules' and clicking 'New' is the standard module-based method for creating a Business Rule in ServiceNow. This path directly accesses the Business Rule table (sys_script) and opens a new record form, which is a valid and documented approach.

Answer

From the Business Rules list, right-click and select 'New'.

Answer

Type 'business_rule.do' in the navigator filter.

Answer

Create a Client Script and convert it to a Business Rule.

Question 12

Which THREE of the following are true about ACLs (Access Control Lists)? (Choose three.)

Accepted Answer

ACLs can include conditions that must be met for access.. ACLs (Access Control Lists) in ServiceNow are used to enforce security by specifying conditions that must be met for a user to access a record, field, or script. Option A is correct because an ACL defines a condition (typically a script or a set of conditions) that evaluates to true or false, and only when the condition is met is access granted or denied. This is the core mechanism of ServiceNow's role-based and condition-based access control.

Answer

ACLs are evaluated on the client side.

Answer

ACLs are only applicable to system tables.

Question 13

Which TWO of the following are types of UI Policies? (Choose two.)

Accepted Answer

On change. UI Policies in ServiceNow are client-side scripts that run on the browser to control the behavior of fields on a form. The 'On change' type triggers when a specified field's value changes, allowing dynamic field updates or visibility changes. The 'On load' type triggers when the form is initially loaded, enabling default value setting or field configuration before user interaction.

Answer

On submit

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On delete

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On query

Question 14

The Business Rule above runs on the 'incident' table. It is set to run 'before' update. What is the most likely issue with this script?

Accepted Answer

The script will cause a recursive loop because it updates incident records within a Business Rule that runs on the same table.. Updating the same table (incident) within a 'before update' Business Rule that runs on that table creates a recursive loop. Each time the script calls gr.update() on an incident record, it triggers the same Business Rule again, leading to infinite recursion until the system enforces a governor limit or stack overflow. ServiceNow detects and prevents such loops by throwing an error, but the design is fundamentally flawed.

Answer

The script should use 'current' instead of 'gr' to update records.

Answer

The script has a syntax error: missing semicolon after the while loop.

Answer

The script does not commit the changes because it uses 'gr.update()' instead of 'current.update()'.

Question 15

The ACL above is on the 'incident' table. A user with role 'itil' tries to update an incident record. What will happen?

Accepted Answer

The user will be denied because the condition fails.. The ACL (Access Control Rule) on the 'incident' table has a condition that must evaluate to true for the user to be granted access. In this case, the condition fails for a user with role 'itil' attempting to update the record, so the script does not set answer = true, resulting in a denial of the operation. Option D is correct because the condition failing means the ACL denies the write operation.

Answer

The user will be prompted for credentials.

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The user will be allowed because the condition is ignored for write operations.

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The user will be allowed because the script sets answer = true.

Question 16

A company has implemented a custom application for tracking employee training. The application uses a custom table 'u_training' with fields: u_employee (reference to sys_user), u_course (string), u_completion_date (date), and u_status (choice: Not Started, In Progress, Completed). The application has a Business Rule that runs after insert and after update. The rule should send an email notification to the employee when the status changes to 'Completed'. However, the email is not being sent. The developer has verified that the notification record exists and is active. The Business Rule script uses the 'gs.eventQueue' method to trigger a custom event. The event is registered and the notification is configured to be triggered by that event. What is the most likely cause of the issue?

Accepted Answer

The Business Rule does not have a condition to check if the status changed to 'Completed'.. The Business Rule lacks a condition to verify that the status field actually changed to 'Completed'. Without a condition like `current.u_status.changesTo('Completed')`, the rule fires on every insert and update, calling `gs.eventQueue` even when the status hasn't changed. This means the event is triggered unnecessarily, but more critically, the notification may not fire because the event is not scoped to the specific state transition. The developer verified the notification record is active, so the missing condition is the most likely root cause.

Answer

The event name is misspelled in the gs.eventQueue call.

Answer

The notification is set to 'Inactive'.

Answer

The employee's email address is not set in sys_user.

Question 17

A ServiceNow instance has a custom application for managing IT assets. The application uses a custom table 'u_asset' with fields: u_asset_tag (string), u_model (string), u_assignee (reference to sys_user), u_status (choice: In Use, In Stock, Retired). The application requires that when an asset is retired, the assignee field must be cleared. The developer created a Business Rule on the 'u_asset' table that runs before update. The script checks if the status changes to 'Retired' and sets the assignee to empty. However, the assignee is not being cleared when the status is changed to 'Retired'. The Business Rule is active and runs before update. What is the most likely cause?

Accepted Answer

The script sets the field using 'current.u_assignee = null;' instead of 'current.setValue("u_assignee", "");'.. In ServiceNow Business Rules, setting a field to null using direct assignment (e.g., current.u_assignee = null) does not trigger the platform's update logic; the change is not persisted to the database. The correct method is to use current.setValue('u_assignee', '') which properly marks the field for update and clears the reference.

Answer

The Business Rule is set to run after the record is saved, so changes are overwritten.

Answer

The condition 'current.u_status.changesTo("Retired")' is incorrect.

Answer

The Business Rule runs after update instead of before update.

Question 18

Drag and drop the steps to create a new Catalog Item in ServiceNow into the correct order.

Accepted Answer

Navigate to Maintain Items, then Create New, then Set Category and Details, then Add Variables, then Submit. The correct order: navigate to Maintain Items, create new, set category and details, add variables, and submit.

Answer

Navigate to Maintain Items, then Create New, then Add Variables, then Set Category and Details, then Submit

Answer

Set Category and Details, then Navigate to Maintain Items, then Create New, then Add Variables, then Submit

Answer

Navigate to Maintain Items, then Add Variables, then Create New, then Set Category and Details, then Submit

Question 19

Match each ServiceNow access control rule (ACL) type to its function.

Accepted Answer

Read ACL: Grants permission to view records.. ServiceNow ACL types define the operation being restricted. Read, Write, Create, Delete, and Execute are common. Correctly pair each ACL with its function: Read for viewing, Write for modifying, Create for adding, Delete for removing, Execute for running scripts. Common confusions involve swapping Delete and Execute.

Answer

Delete ACL: Grants permission to run server-side scripts.

Answer

Execute ACL: Grants permission to remove records.

Question 20

A developer needs to display a warning message to the user when a specific field value changes on a form, but the record should still be savable. Which approach should be used?

Accepted Answer

Create an 'onChange' Client Script using g_form.addErrorMessage() or g_form.showFieldMsg().. An 'onChange' Client Script runs on the client side when a specific field value changes, allowing the developer to display a warning message using g_form.addErrorMessage() or g_form.showFieldMsg() without preventing the record from being saved. This approach ensures the user sees the warning interactively while still being able to submit the form, which matches the requirement exactly.

Answer

Create a UI Policy with a condition and a UI message.

Answer

Create a Business Rule that uses gs.addErrorMessage().

Answer

Create a Data Policy for the field and set a warning message.