SNOW-CAD Practice Test 26 — 15 Questions

Question 1

A developer needs to expose a Scripted REST API that allows external clients to retrieve a list of active incidents. The response must include only the number, short_description, and priority fields for incidents in the 'In Progress' state. Which approach should the developer take to define the response body?

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

Accepted Answer

Use a GlideRecord query in the script and manually build a JSON object with the required fields.. The developer needs to expose specific incident fields via a Scripted REST API. The most direct and controlled method is to write a script that queries the incident table, filters by state, and builds a JSON object containing only the required fields. This ensures the response meets the exact specification without exposing extra data.

Answer

Use a Transform Map to map incident fields to a custom table, then expose that table via a REST API.

Answer

Configure a REST Message with a GET method and use the response body from the incident table.

Answer

Create a Scripted REST API resource and set the response body to the result of a GlideRecord query without field filtering.

Question 2

A developer is working in ServiceNow Studio on a scoped application. The developer needs to create a new client script that runs on a form and must be available only within the application's scope. Which action should the developer take?

Accepted Answer

In Studio, use the Create Application File option, select Client Script, and complete the form; the script will automatically be in the application's scope.. In ServiceNow Studio, the correct way to add a new client script to a scoped application is to use the Create Application File option and select Client Script. This ensures the script is created in the application's scope and is included in the application package. Other methods may work but are not scoped automatically and can lead to deployment issues.

Answer

Create a business rule with the "Client" check box selected, which will generate a client script in the application scope.

Answer

Navigate to System UI > Client Scripts and create a new record, setting the Application field to the scoped application.

Answer

Create a UI Policy instead, because client scripts cannot be scoped to an application.

Question 3

A developer creates a Service Portal widget that displays a list of records. The widget's client controller uses an ng-repeat directive to render the records, but the list does not update when the underlying data changes via a background script. The developer confirms the server script returns updated data when the widget is reloaded. What is the most likely cause?

Accepted Answer

The widget does not have a mechanism to automatically refresh when the underlying data changes.. Service Portal widgets are stateless and do not automatically re-render when database records change. The client controller retrieves data once during initialization. To reflect changes made by background scripts, the widget must implement a refresh strategy such as polling, web sockets, or a manual refresh button. Without such a mechanism, the displayed data remains static until the page is reloaded.

Answer

The ng-repeat directive is missing the track by clause, causing AngularJS to not detect changes.

Answer

The widget's client controller is not using $scope.$apply() after updating the data model.

Answer

The widget's server script is not using GlideRecord correctly to fetch the records.

Question 4

A developer needs to run a script whenever a new record is inserted into the Incident [incident] table, but the script must execute after the record has been written to the database so it can read the sys_id. Which business rule configuration should the developer use?

Accepted Answer

After insert with the 'advanced' option enabled.. To act on a newly inserted record and read its sys_id, the rule must run after the insert completes. An after insert business rule with the advanced option enabled executes server-side script once the record is written, making the sys_id available. Before insert runs too early, and display rules do not run on insert at all.

Answer

Before insert with the 'advanced' option enabled.

Answer

Async insert with the 'advanced' option enabled.

Answer

Display insert with the 'advanced' option enabled.

Question 5

A developer is building a custom integration that uses an Outbound REST Message to send data to an external system. The external system requires that the request include a custom header 'X-Correlation-ID' with a unique value for each call, and that the response be parsed to extract a 'status' field. Which two steps must the developer perform to meet these requirements? (Choose two.)

Accepted Answer

In the script that invokes the REST message, parse the response body using JSON.parse() and access the 'status' property.. To include a unique correlation ID header, the developer must define a custom header on the REST Message HTTP method and populate its variable at runtime. To extract the 'status' field from the response, the developer must parse the JSON response body in the script, typically with JSON.parse(). These two steps directly address the external system's requirements and are standard practices for outbound REST integrations in ServiceNow.

Answer

Use the REST Message's 'Response' tab to define a custom parser that extracts the 'status' field from the JSON response.

Answer

Enable the 'Parse response as JSON' option on the REST Message record to automatically extract the 'status' field.

Answer

Configure the REST Message to use the 'X-Correlation-ID' as part of the endpoint URL query string instead of a header.

Question 6

A developer is building a scoped application in ServiceNow Studio that must enforce data separation and allow other developers to extend its functionality without modifying the original code. Which two features should the developer use? (Choose two.)

Accepted Answer

Extension Points. Application Scope enforces data separation by isolating the application's components, while Extension Points provide a formal mechanism for other developers to extend the application's behavior without modifying its source code. Together, they enable a secure and extensible architecture.

Answer

Access Control Lists (ACLs)

Answer

Script Includes

Answer

Application Dependencies

Question 7

A developer needs to create a UI Policy that makes the 'description' field mandatory and read-only when the 'state' field is 'Closed'. The UI Policy should apply to all users, regardless of role. Which UI Policy configuration should the developer use?

Accepted Answer

Create a UI Policy with condition 'state=Closed', and in the UI Policy Actions, set 'description' to Mandatory=true and Read only=true.. The requirement is to make the description field mandatory and read-only when state is Closed, for all users. A UI Policy with the condition 'state=Closed' and actions setting Mandatory=true and Read only=true achieves this. UI Policies are client-side and apply to all users by default. The other options include unnecessary or incorrect settings: hiding the field instead of making it read-only, adding a Global checkbox that is not required, or enabling Run scripts without a script. The straightforward configuration is the correct approach.

Answer

Create a UI Policy with condition 'state=Closed', and in the UI Policy Actions, set 'description' to Mandatory=true and Read only=true, and set the 'Run scripts' checkbox to true.

Answer

Create a UI Policy with condition 'state=Closed', and in the UI Policy Actions, set 'description' to Mandatory=true and Read only=true, and also set the 'Global' checkbox to true.

Answer

Create a UI Policy with condition 'state=Closed', and in the UI Policy Actions, set 'description' to Mandatory=true and Visible=false.

Question 8

A developer is using a scheduled job to import data from a REST API into a custom table. The API returns a JSON array of objects, and the developer needs to parse the response and insert records. The scheduled job runs every hour. Which method should the developer use to parse the JSON response?

Accepted Answer

Use JSON.parse() to convert the response string into a JavaScript object.. In a scheduled job, the developer should use JSON.parse() to convert the JSON string response into a JavaScript object. This allows iterating over the array and accessing each object's properties to insert records into the custom table. JSON.parse() is the standard and supported method in ServiceNow server-side scripting.

Answer

Use the 'Parse JSON' action in Workflow to extract the data.

Answer

Use the REST Message's response parser to automatically map JSON to records.

Answer

Use GlideStringUtil.parseJSON() to parse the JSON response.

Question 9

A developer needs to add a new field 'u_department' to the 'sys_user' table. The field should be a reference to the 'cmn_department' table and must be displayed on the user form. The developer does not have access to the base 'sys_user' table configuration. Which approach should the developer take?

Accepted Answer

Create a new dictionary entry for the 'sys_user' table with the required field properties.. To add a field to an existing table, you create a new dictionary entry for that table. This is the standard method and does not require direct modification of the base table's schema. The field becomes part of the table and can be added to forms and lists. Other options either create new tables or attempt to use scripting without a field, which is not feasible.

Answer

Use a business rule to populate the field on the fly without adding it to the table.

Answer

Create a new table that extends 'sys_user' and add the field there.

Answer

Create a new form section on the 'sys_user' form and add the field via a UI action.

Question 10

A developer must add a new tab to the Agent Workspace record page for the Incident table. The tab should display a related list of the incident's child tasks and only appear when the incident has at least one child task. Which configuration should the developer perform?

Accepted Answer

In UI Builder, open the Incident record page, add a Tab component with a Related List component configured for the child task relationship, and set a visibility condition based on the related list count.. Agent Workspace record pages are built and configured in UI Builder rather than through the classic form layout. The correct solution adds a Tab component containing a Related List component bound to the child task relationship, then applies a visibility condition requiring at least one related record. Form sections, UI Actions, and annotations cannot create workspace tabs or control their conditional display.

Answer

Add a new form section on the Incident form layout and place the child task related list inside it.

Answer

Configure a form annotation and a client script that hides or shows the related list based on the number of child tasks.

Answer

Create a UI Action on the Incident table with a condition that checks for child tasks, and set it to open the related list in a modal.

Question 11

A developer needs to prevent users from deleting records in a custom table u_asset_request when the record's state is 'approved'. The requirement must be enforced for all users, including those with the admin role, and must also apply when records are deleted via background scripts. Which configuration should the developer use?

Accepted Answer

A before delete Business Rule that calls current.setAbortAction(true) when state is 'approved'.. Enforcing a delete restriction that must hold for all users, including admins, and across all execution paths requires server-side enforcement. A before delete Business Rule with setAbortAction(true) cancels the delete at the database layer regardless of the interface, role, or script that initiated it, making it the only option that fully meets the stated requirement.

Answer

A UI Policy on the u_asset_request table that makes the delete button read-only when state is 'approved'.

Answer

A client script of type onSubmit that returns false when state is 'approved'.

Answer

An ACL on the delete operation that requires the admin role.

Question 12

A developer is building a Service Portal widget that displays a list of knowledge articles. The widget should allow users to click on an article title to view the full article in a modal dialog. The developer wants to use the standard Service Portal service to open the modal dialog. Which service should be used?

Accepted Answer

spModal. spModal is the built-in Service Portal service designed for opening modal dialogs. It provides a simple API to open a modal with a widget or a record, and it integrates with the portal's styling and behavior. This makes it the correct service for displaying a knowledge article in a modal dialog.

Answer

$uibModal

Answer

$mdDialog

Answer

spUtil

Question 13

A developer is building a Scripted REST API in ServiceNow to expose incident data to an external monitoring tool. The external tool requires that each response include a custom HTTP header named X-Request-ID containing a unique value per request. Where should the developer add this header in the Scripted REST API resource script?

Accepted Answer

Use the response.setHeader('X-Request-ID', uniqueValue) method within the resource script.. In a Scripted REST API, the response object allows developers to set custom headers dynamically using response.setHeader. This is essential when the header value must be unique per request, such as a request ID. The other options describe non-existent configuration fields or incorrect methods that would not achieve the desired outcome.

Answer

Configure a custom HTTP header in the REST API's 'Response Headers' field on the resource form.

Answer

Add the header in the REST API definition's 'Headers' related list under the API record.

Answer

Use the request.setHeader('X-Request-ID', uniqueValue) method within the resource script.

Question 14

A developer needs to create a scheduled job that runs every night at 2:00 AM and sends reminders for incidents that have been in the 'In Progress' state for more than 7 days. The job must run as a specific user with access to the incident table and must be packaged with a scoped application. Which configuration should the developer use?

Accepted Answer

A Scheduled Job record with a time that runs daily at 2:00 AM, run as the designated user, in the application scope.. Scheduled Jobs are the platform mechanism for time-based server-side execution. They support a daily time schedule, a run-as user for access control, and can be created in a scoped application so they migrate with it. This directly satisfies the nightly 2:00 AM requirement, the specific user identity, and the packaging constraint.

Answer

A Business Rule on the incident table set to run asynchronously when the state changes.

Answer

A client script that runs on the incident form and checks the age of the record.

Answer

A Flow Designer flow with a Scheduled flow trigger set to run daily at 2:00 AM.

Question 15

A developer needs a script include named IncidentUtils to expose a method that other server-side scripts can call without instantiating the class. The method must be accessible from business rules and scheduled jobs. Which configuration is required?

Accepted Answer

Define the method with the static keyword inside the script include class definition.. Static methods are attached to the class itself, so they can be called as IncidentUtils.methodName() without creating an instance. That is exactly what the requirement describes for use in business rules and scheduled jobs. Instance methods would force callers to use the new operator, and client callable settings are irrelevant to server-side invocation.

Answer

Set the script include's Accessible from field to 'All application scopes' and define the method as a regular instance method.

Answer

Place the method in a global business rule instead of a script include so all scripts can call it.

Answer

Define the method with the static keyword and set the script include's Client callable field to true.