SNOW-CAD Core Application Development Practice Test 2 — 15 Questions

Question 1

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?

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

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 2

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 3

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 4

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 5

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.

Question 6

A company has a Business Rule that runs after a record is updated. The rule needs to update a related record on a different table. However, the related record update is not being saved. What is the most likely cause?

Accepted Answer

The script is missing the .update() method on the GlideRecord object after setting field values.. In ServiceNow, when a Business Rule modifies a GlideRecord object (e.g., setting field values on a related record), the changes are not persisted to the database until the `.update()` method is explicitly called. Without `.update()`, the script runs without error but the modifications are lost, which is the most common cause of an update not being saved.

Answer

There is a script error that is being ignored because the Business Rule is set to 'true' for 'Run asynchronously'.

Answer

The Business Rule runs in a separate transaction and the update is rolled back.

Answer

The user running the script does not have write access to the related table.

Question 7

A developer implemented an ACL to restrict read access on the 'incident' table. The condition script checks if the user is a member of the 'incident_manager' group. However, users who are not in the group are still able to see incidents. What is the most likely reason?

Accepted Answer

There is another ACL with a lower order that grants read access to all users, and the evaluation never reaches the scripted ACL.. ACLs in ServiceNow are evaluated in order of their 'Order' field (lower numbers first). If a lower-order ACL grants read access to all users, the evaluation stops at that ACL and never reaches the scripted ACL that restricts access to the 'incident_manager' group. This is the most common reason for an ACL appearing to not work — a broader, higher-priority ACL is allowing access before the restrictive one is evaluated.

Answer

The ACL is cached and users need to log out and back in for changes to take effect.

Answer

The condition script returns 'true' for users in the group but does not return 'false' for others, so the ACL defaults to 'no decision' and access is allowed.

Answer

The ACL is set to 'Inactive' so it does not apply, leaving access open.

Question 8

A developer needs to create a record in the 'task' table when a specific condition is met in a Business Rule. The new record should be linked back to the current record via a reference field. What is the best practice to ensure the new record is created in the same transaction?

Accepted Answer

Use GlideRecord with newRecord() and set values, then call insert().. Using GlideRecord with newRecord() and insert() within the same Business Rule ensures the new 'task' record is created in the same database transaction as the current record. This guarantees atomicity: if the insert fails, the entire transaction rolls back, preventing orphaned records. The reference field linking back to the current record is set synchronously before the insert, maintaining data integrity.

Answer

Use Flow Designer to create the record asynchronously.

Answer

Use the GlideRecord updateMultiple() method.

Answer

Call a Scripted REST API to insert the record.

Question 9

A Script Include is defined as 'Scoped' and has 'Accessible from' set to 'All applications'. It contains a function that uses 'gs.getUser()'. When the Script Include is called from a Business Rule in a different application scope, what is the result?

Accepted Answer

The function runs successfully and gs.getUser() returns the current user from the caller's session.. A Script Include defined as 'Scoped' with 'Accessible from' set to 'All applications' is explicitly made available to other application scopes. When called from a Business Rule in a different scope, the function executes in the context of the caller's session, so `gs.getUser()` returns the current user from the caller's session, not from the Script Include's own scope. This behavior is governed by the scoping rules that allow cross-application access when the property is set accordingly.

Answer

An error occurs because scoped Script Includes cannot be called from other applications.

Answer

The function runs but gs.getUser() returns the user from the Script Include's application scope, not the caller.

Answer

The function runs but returns null because gs is not available in scoped applications.

Question 10

A developer is optimizing a Business Rule that runs on every update to the 'incident' table. The rule uses GlideAggregate to count related records. The developer notices performance degradation. Which change will most improve performance while maintaining functionality?

Accepted Answer

Add a condition to the Business Rule such as 'current.changesField('state')' to only run the aggregate when relevant.. It prevents the GlideAggregate from executing on every update, instead running only when the 'state' field changes. This reduces unnecessary database operations, directly addressing the performance degradation while preserving the rule's functionality when needed.

Answer

Replace GlideAggregate with GlideRecord and count results manually.

Answer

Add a database index on the foreign key field used in the aggregate.

Answer

Use the gs.addInfoMessage() to log the count and disable the script in production.

Question 11

A service catalog item has a variable set that includes a reference field to the 'cmdb_ci' table. The requirement is to show only 'Server' type CI's in the reference field. Which approach should be used?

Accepted Answer

Set a Reference Qualifier on the variable definition that uses the condition 'sys_class_name=Server'.. A Reference Qualifier on a variable definition allows you to filter the records displayed in a reference field using a condition string. By setting the condition 'sys_class_name=Server', only CI records with that specific sys_class_name will appear, which directly meets the requirement to show only 'Server' type CIs.

Answer

Create a UI Policy that sets the field as read-only and uses a condition to filter.

Answer

Write a Client Script on load that sets the reference qualifier using setRefQual().

Answer

Use a Data Policy to enforce a condition on the field.

Question 12

A developer creates a Scheduled Job that runs daily and sends an email notification to a list of users. The job uses a Script Action to query the 'incident' table and sends an email if the count exceeds a threshold. However, the email is not being sent. What is the most likely cause?

Accepted Answer

There is a script error in the Script Action that prevents the email from being sent.. The most likely cause of the email not being sent is a script error in the Script Action. If the script encounters an error (e.g., a syntax error, a null reference, or a failed query), it will stop execution before reaching the email-sending logic, and the email will not be sent. Scheduled Jobs in ServiceNow execute scripts in a headless environment, and any unhandled exception will silently fail without sending the email.

Answer

The email notification is set to 'Inactive'.

Answer

The Scheduled Job is configured to run on a different schedule than expected.

Answer

The user who created the job does not have the 'email_send' role.

Question 13

A company has a requirement that the 'state' field of an incident cannot be changed from 'In Progress' to 'Resolved' if the 'category' field is empty. This validation must be enforced server-side to prevent data integrity issues. Which implementation should be used?

Accepted Answer

Create a 'before' Business Rule that checks if the state is changing to 'Resolved' and if category is empty, aborts the update with an error message.. A 'before' Business Rule runs server-side and can check if the state is changing to 'Resolved' and if the category field is empty. Using gs.addErrorMessage() and returning false aborts the update, enforcing the validation server-side. Option A (Data Policy) would make category mandatory globally, not only during the specified state transition. Option B (ACL) controls field-level access but cannot validate value transitions. Option C (Client Script) runs client-side and can be bypassed.

Answer

Make the 'category' field mandatory using a Data Policy.

Answer

Configure an ACL on the 'state' field to deny write access when category is empty.

Answer

Create a Client Script on 'state' change that checks if category is empty and shows an error message.

Question 14

Which TWO are valid ways to create a new application scope in ServiceNow? (Choose two.)

Accepted Answer

Install an update set from an application repository that contains an application scope.. Installing an update set from an application repository that contains an application scope is a standard method to bring a scoped application into an instance. The update set carries the application definition and its scope, and upon commit, ServiceNow creates the application scope automatically if it does not already exist. This is a common approach for distributing scoped applications across instances.

Answer

Use the 'Application Creator' UI page to define a new scope via REST API.

Answer

Import a v1 update set that includes an application definition.

Answer

Navigate to 'All' > 'Scopes' and click 'New'.

Question 15

Which THREE of the following are attributes of a Service Portal widget? (Choose three.)

Accepted Answer

Server Script. Server Script is a core attribute of a Service Portal widget because it runs on the server side when the widget is loaded or when a client-initiated action triggers a server call via the 'server.get' or 'server.update' options. It allows developers to query the database, perform business logic, and return data to the client controller, making it essential for data retrieval and processing within the widget lifecycle.

Answer

CSS Styling

Answer

Business Rule