SNOW-CAD Practice Exam 3 — 20 Questions

Question 1

A Service Portal widget is failing to update a reference field on a form after a user selects a value from a reference picker. The developer reviews the widget's client controller and sees the following code snippet: $scope.c.data.selectedItem = value; The server script expects 'selectedItem' to be a sys_id string, but it is receiving an object. What is the most likely cause?

Accepted Answer

The reference field returns an object with 'value' and 'display' properties; the code should extract the sys_id.. Option D is correct because when a reference picker returns a value in Service Portal, it typically provides an object containing both the display value and the sys_id (e.g., {value: 'sys_id', display: 'name'}). The client controller code assigns this entire object to $scope.c.data.selectedItem, but the server script expects a plain sys_id string. The developer must extract the sys_id property (e.g., value.sys_id or value.value) before assigning it to the scope variable.

Answer

The server script expects the parameter in a different scope variable, like $scope.c.data.item.

Answer

The $scope.c.data assignment is incorrect; it should be $scope.data.

Answer

The client controller is not allowed to set $scope.c variables.

Question 2

A developer is designing a custom form in the standard UI (UI16) and needs to add a message that displays only when the 'state' field is 'Closed'. Which feature should be used to achieve this without custom scripting?

Accepted Answer

Create a UI Policy that adds a message when the condition state=Closed is true.. UI Policies are the correct declarative feature in UI16 to show a message based on a field value without custom scripting. They run on the client side and can display informational, warning, or error messages when a specified condition (like state=Closed) is met, making option A the appropriate choice.

Answer

Create a form section and set its condition via the 'Conditional' property.

Answer

Write a Client Script that shows a message when state changes to Closed.

Answer

Use a UI Macro with a condition that checks the state field.

Question 3

This client script is attached to the 'category' field on the incident form. When the user changes the category to 'Network', what happens to the short_description field?

Accepted Answer

The short_description is set to 'Category changed to Network'.. Option B is correct because the client script checks if the newValue of the 'category' field is not empty and equals 'Network'. When the user changes the category to 'Network', newValue is 'Network', which passes the empty check (newValue !== ''), and then the condition newValue === 'Network' is true. The script then executes g_form.setValue('short_description', 'Category changed to Network'), which sets the short_description field to that string.

Answer

Nothing happens because newValue equals 'Network' which passes the empty check.

Answer

An error occurs because setValue cannot be called with a string.

Answer

The short_description is cleared.

Question 4

During development, a developer creates a new application module and adds a table 'x_abc_incident' with a reference field to the 'sys_user' table. The developer wants to ensure that when a user is deleted, all related incident records are also deleted. What database constraint should be configured on the reference field?

Accepted Answer

Cascade delete. Option A is correct because a cascade delete constraint ensures that when a record in the parent table (sys_user) is deleted, all child records in the referencing table (x_abc_incident) that have a foreign key pointing to that parent are automatically deleted. In ServiceNow, this is configured on the reference field's 'Delete constraint' property by selecting 'Cascade delete', which enforces referential integrity at the database level.

Answer

No action

Answer

Restrict delete

Answer

Set null on delete

Question 5

A developer needs to import data from a CSV file into a custom table. Which ServiceNow module should be used for this task?

Accepted Answer

Import Sets. Import Sets are the correct ServiceNow module for importing data from a CSV file into a custom table. They provide a structured pipeline that maps CSV columns to table fields, with staging tables for validation before final insertion. This is the standard approach for one-time or recurring data imports in ServiceNow.

Answer

Scheduled Jobs

Answer

Update Sets

Answer

Data Source

Question 6

A developer writes a business rule that queries the 'incident' table using GlideRecord. The script loops through all incidents and updates a field. After running, the developer notices that only a subset of records were updated. What is the most likely cause?

Accepted Answer

The GlideRecord query did not include a condition, so it used a default filter that limited results. Option B is correct because GlideRecord queries in ServiceNow automatically apply a default filter when no explicit condition is set, typically limiting results to records where the `active` field is `true`. This default behavior, known as the 'active filter,' causes the script to only process a subset of incidents (those that are active) rather than all records in the table, explaining why only some were updated.

Answer

The user running the script lacks write ACL on the table

Answer

The field name used in the update was misspelled

Answer

The script did not call getRowCount() before the loop

Question 7

Which THREE conditions must be met for a user to successfully see a record in a ServiceNow list view?

Accepted Answer

The user has read permission on the table via an ACL.. Option B is correct because ServiceNow uses Access Control Lists (ACLs) to enforce read permissions on tables. Without a read ACL that evaluates to true for the user, the system will not display any records from that table in a list view, regardless of other conditions.

Answer

The user has write permission on the table.

Answer

The user has configured a personalized list view for the table.

Question 8

A ServiceNow instance is being integrated with an external HR system using a SOAP message. The SOAP call is failing intermittently. The developer notices that the XML payload contains special characters like '&' and '<'. What is the best practice to handle these characters in SOAP messages?

Accepted Answer

Escape the characters using XML entities (e.g., & for &).. SOAP messages are XML-based, and special characters like '&' and '<' must be escaped using XML entities (e.g., & for &, < for <) to maintain valid XML syntax. This ensures the XML parser correctly interprets the payload without breaking the message structure, which is the standard practice per the XML specification and SOAP protocol.

Answer

Wrap the payload in a CDATA section.

Answer

Encode the entire payload in Base64.

Answer

Use URL encoding for the payload.

Question 9

Which TWO data types are available in ServiceNow for storing date and time values?

Accepted Answer

Date/Time. ServiceNow provides two dedicated data types for storing date and time values: 'Date' for calendar dates without time, and 'Date/Time' for combined date and time values. These are the correct choices because they directly map to the platform's field types used in tables like Task and Incident for tracking creation and due dates.

Answer

Time

Answer

Duration

Answer

Timestamp

Question 10

A company wants to allow their customers to submit requests via email. The email should create a new record in the 'Request' table. Which component should be used to define the mapping of email fields to the ServiceNow table fields?

Accepted Answer

Inbound Email Action. An Inbound Email Action is the correct component because it defines the mapping of email fields (e.g., subject, body, sender) to ServiceNow table fields (e.g., 'Short description', 'Description', 'Caller'). It uses a script or condition to parse the incoming email and create or update records in a specified table, such as the 'Request' table. This is the standard mechanism for turning an email into a ServiceNow record.

Answer

Email Account

Answer

Inbound Email Script

Answer

Email Notification

Question 11

Which TWO of the following are valid methods to authenticate a REST API call to ServiceNow?

Accepted Answer

Basic Authentication with username and password.. Option C is correct because ServiceNow supports Basic Authentication, where the REST API call includes an HTTP Authorization header with a Base64-encoded string of 'username:password'. This is a straightforward method for authenticating API requests, though it requires HTTPS to avoid exposing credentials in plaintext.

Answer

SAML assertion authentication.

Answer

LDAP authentication.

Answer

API Key authentication.

Question 12

Which THREE of the following are valid components of the ServiceNow IntegrationHub?

Accepted Answer

Action steps. Action steps are a core component of IntegrationHub, representing individual, reusable actions that can be composed into a flow to perform specific tasks, such as making API calls or transforming data. They are the building blocks that define the logic and operations within an IntegrationHub flow, enabling complex integrations without custom scripting.

Answer

REST Message

Answer

Data Source

Question 13

Refer to the exhibit. A developer is making a REST API call to create an incident. The call returns a 201 Created response, but the incident record is not visible in the instance. What is the most likely cause?

Accepted Answer

The 'caller_id' sys_id is invalid or points to a non-existent user.. A 201 Created response indicates the REST API call was syntactically correct and the server accepted the payload, but the incident record is not visible. The most likely cause is an invalid caller_id sys_id, because ServiceNow validates the caller_id field against the sys_user table during record creation. If the sys_id does not exist or is malformed, the record is created but the caller_id reference fails silently, often causing the record to be hidden from standard views or filtered out by default queries.

Answer

The request method should be PUT instead of POST.

Answer

The field 'short_description' is misspelled.

Answer

The instance has an ACL that prevents creating incidents via REST.

Question 14

A global company is using ServiceNow for IT Service Management. They have an external asset management system that needs to update asset records in ServiceNow in real-time. The integration is implemented using REST API calls from the external system to ServiceNow. Recently, the integration started failing intermittently with HTTP 429 (Too Many Requests) errors. The external system is sending a high volume of update requests (up to 1000 per minute) to the /api/now/table/alm_asset endpoint. The administrator noticed that the instance performance is degraded during peak times. The company wants to resolve the 429 errors while ensuring data is updated as quickly as possible, but without overloading the instance. Which course of action should the administrator take?

Accepted Answer

Implement a queue-based integration using Flow Designer to process updates asynchronously with a controlled rate.. Option C is correct because it addresses the root cause of the 429 errors—overwhelming the REST API endpoint with synchronous requests—by decoupling the external system from direct writes. Using Flow Designer with a queue (e.g., via the ServiceNow Queue or a custom table) allows the external system to submit requests asynchronously, and then a scheduled flow or script processes them at a controlled rate (e.g., using a rate limiter or batch size). This ensures data is updated as quickly as possible without exceeding the instance's API rate limits or degrading performance, as the processing is throttled server-side.

Answer

Increase the API rate limit in the instance's system properties.

Answer

Reduce the number of requests from the external system to 500 per minute.

Answer

Switch the authentication method from basic to OAuth to reduce overhead.

Question 15

A developer is writing a business rule that should trigger on update of the 'short_description' field of an incident. The rule needs to check if the new value contains 'urgent' and, if so, set the priority to 1. Which TWO statements are true about implementing this rule?

Accepted Answer

The condition 'current.short_description.changes()' can be used to ensure the rule runs only when short_description changes.. Option A is correct because the `changes()` method in ServiceNow returns true only when the specified field's value has been modified during the current transaction. This ensures the business rule triggers exclusively on updates to the `short_description` field, preventing unnecessary execution on other field changes. Option B is correct because `current.short_description` always holds the new (updated) value of the field when the business rule runs after the database update.

Answer

The new value of short_description can be accessed using previous.short_description.

Answer

To set the priority, use current.priority.setValue(1).

Answer

The comparison should use current.short_description.indexOf('urgent') !== -1.

Question 16

A developer is creating a custom table for tracking hardware assets. The table must have fields for asset tag, serial number, and purchase date. The developer wants to ensure that the asset tag is automatically generated using a prefix followed by an incrementing number. Which approach should the developer use?

Accepted Answer

Create a business rule that calculates the asset tag using a script that increments a counter. Option C is correct because ServiceNow does not have a built-in auto-increment field type, so a business rule must be used to generate a sequential asset tag. The script typically queries the table for the maximum existing number, increments it, and prepends the prefix (e.g., 'AST-0001'). This ensures uniqueness and proper sequencing without relying on sys_id, which is not sequential.

Answer

Use a calculated value that dot-walks to a number table

Answer

Set the default value of the asset tag field to 'AST-' + sys_id

Answer

Configure a dictionary override on the asset tag field to auto-generate

Question 17

A developer is building a custom application that requires a scheduled job to run every hour and check for overdue tasks. In ServiceNow Studio, what is the best way to implement this?

Accepted Answer

Create a Scheduled Job in Studio that runs every hour and executes a script to check overdue tasks.. Option D is correct because ServiceNow Studio provides a native 'Scheduled Jobs' module that allows developers to create and manage recurring server-side scripts directly within the IDE. This approach leverages the platform's job scheduler, which runs on the node's clock and integrates with the glide system, ensuring reliable hourly execution without external dependencies or performance overhead from transactional triggers.

Answer

Set up a REST API endpoint that external cron jobs call every hour.

Answer

Create a Business Rule that runs on 'after' insert and update to check for overdue tasks.

Answer

Use Flow Designer to create a scheduled flow that runs every hour.

Question 18

A ServiceNow developer needs to implement a business rule that automatically sets the 'state' field to 'In Progress' when a user is assigned to an incident. The rule should run only when the 'assigned_to' field changes, and should not run on any other updates. Which condition type and condition script should be used?

Accepted Answer

Condition type: 'when to run' set to 'on update' with condition 'current.assigned_to.changes()'. Option A is correct because the 'when to run' condition type set to 'on update' with the condition 'current.assigned_to.changes()' ensures the business rule triggers only when the 'assigned_to' field is updated, and not on insert or other field changes. The 'changes()' method returns true only when the specified field has been modified during the current transaction, which precisely meets the requirement.

Answer

Condition type: 'when to run' set to 'on update' with condition 'current.assigned_to.changes() || current.state.changes()'

Answer

Condition type: 'when to run' set to 'on insert or update' with condition 'current.assigned_to.changes()'

Answer

Condition type: 'advanced' with condition script 'current.assigned_to.changes()' and run on 'update'

Question 19

A developer notices that the business rule does not set the assignment group as expected when a new record is created with state 0. What is the most likely issue?

Accepted Answer

The assignment_group value is not a valid sys_id of a group.. The most likely issue is that the assignment_group value provided in the script is not a valid sys_id of an existing group. In ServiceNow, the assignment_group field is a reference field to the sys_user_group table, and it must contain a valid sys_id. If the sys_id is invalid or does not exist, the field will not be set, and the business rule will appear to have no effect.

Answer

The script has a syntax error.

Answer

The business rule runs after the record is saved, so updates are ignored.

Answer

The business rule condition is incorrect.

Question 20

A developer is creating a custom application in ServiceNow Studio and wants to ensure that the application can be easily installed in other instances without conflicts. Which approach should the developer follow?

Accepted Answer

Create the application with a unique scope prefix in Studio and export as a scoped application.. Option C is correct because creating an application with a unique scope prefix in ServiceNow Studio ensures that all application artifacts (tables, scripts, UI elements) are isolated within that scope, preventing naming conflicts with other applications. Exporting as a scoped application allows the application to be installed in other instances via the ServiceNow Store or manual import, preserving its scope isolation and dependencies.

Answer

Develop the application in global scope and manually copy components to target instances.

Answer

Use the 'Application' module in the navigator to create a new application without scope.

Answer

Create the application in the global scope and use update sets for distribution.