CAD Sample Questions Answers

 Tables that extend a table inherit the parent’s fields. Extending a table means creating a child table that shares the same columns and business logic as the parent table. For example, the Incident table extends the Task table, which means that all fields defined on the Task table are also available on the Incident table. Extending a table allows for reusing existing fields and behaviors without duplicating them on multiple tables. Reference: Table extension and classes

https://developer.servicenow.com/dev.do#!/reference/api/rome/client

The GlideUser object (g_user) is part of the client-side scripting API that provides information about the current user and the user’s preferences. It can be used in Client Scripts and UI Policies to customize the user interface based on the user’s role, language, time zone, etc. The workflow.scratchpad object is only available in Workflow scripts, which are used to automate processes on the platform. The current and previous objects are only available in server-side scripts, such as Business Rules and Script Includes. The GlideSystem object (gs) is also a server-side object that provides methods for logging, debugging, date and time calculations, etc.

References:

[GlideUser object (g_user)]

[Workflow scripts]

[Business Rules]

Script Includes

[GlideSystem object (gs)]

A spoke is a scoped application that contains flow actions that can be used in Flow Designer. Spokes allow developers to create reusable actions that can be shared across applications and instances.

References:

Spokes - Product Documentation: San Diego - ServiceNow

Create a spoke - Product Documentation: San Diego - ServiceNow

Flow Designer Spokes - ServiceNow Developers

A workflow is a tool that allows you to automate processes on the ServiceNow platform. A workflow consists of activities and transitions that define the logic and flow of the process. A workflow context is an instance of a workflow that is generated from a workflow version, executes activities, and follows transitions. A workflow context is associated with a specific record on a table and tracks the state and progress of the workflow. You can view and manage the workflow contexts from the Workflow Contexts module or the Workflow Contexts related list on a record.

The other options are not valid definitions of a workflow context. A checked out workflow is a workflow that is being edited by a user and has not been published yet. The table and conditions for a workflow are the criteria that determine when a workflow should run on a record. The business reason or process for a workflow is the purpose and function of the workflow.

References:

[Workflow overview]

[Workflow context]

The following roles grant access to source control repository operations such as importing applications from source control, or linking an application to source control:

source_control. This is a role that allows users to perform basic source control operations, such as importing an application from a source control repository, updating an application from a source control repository, or committing changes to a source control repository.

admin. This is a role that grants full access to all the features and functions of the ServiceNow platform, including source control operations. Users with this role can also perform advanced source control operations, such as creating or deleting source control repositories, configuring source control properties, or resolving conflicts.

The following roles do not grant access to source control repository operations:

source_control_admin. This is not a valid role in ServiceNow. There is no separate role for source control administration, as this function is included in the admin role.

git_admin. This is not a valid role in ServiceNow. Git is a specific type of source control system that ServiceNow supports, but there is no role dedicated to Git administration. References: Source Control, Source Control Roles

User-defined non-inherited fields can be deleted from a table in ServiceNow. These are fields that are created by users on a specific table and are not inherited from a parent table. Inherited fields cannot be deleted from a table, as they are defined on a parent table and shared by all child tables. Any field on a table cannot be deleted, as some fields are system-defined and essential for the table functionality. Table records are not deleted when a field is deleted, as the field deletion only affects the table structure and not the data. Reference: Delete fields

Flow Designer variables can store record data and complex data using the following data types:

Integer: A whole number that can be used in mathematical operations.

Array: A collection of items that can be accessed by their index or iterated over using a For each action.

String: Any kind of text, such as email addresses or the text contents of a file.

References:

Define and Use Data Types in a Flow (Flow Designer)

Variable data types - Power Automate | Microsoft Learn

Product Documentation | ServiceNow

Comprehensive and Detailed Step-by-Step Explanation:Inherited fields in ServiceNow are fields that are part of a parent table and automatically become part of child tables through inheritance. This structure is foundational in the ServiceNow data model, ensuring that child tables maintain a consistent relationship with their parent tables.

Here’s why inherited fields cannot be deleted from a child table:

System Design:ServiceNow employs a table inheritance model where child tables derive fields and properties from parent tables. Deleting inherited fields from a child table would break the integrity of the data model, as those fields are shared across multiple tables.

Impact on Functionality:Many inherited fields, such as sys_created_on or sys_updated_by, are integral to the functionality of the platform. Removing them could disrupt workflows, reporting, and auditing capabilities.

Alternative Approach:If you want to hide or restrict access to inherited fields in a child table, you can use ACLs (Access Control Lists) to prevent users from viewing or modifying these fields. Another option is to use UI Policies or Client Scripts to control their visibility on forms.

Developer Note:Attempting to delete inherited fields violates ServiceNow’s core principles of maintaining a robust and unified data structure. The platform enforces these rules to ensure consistent behavior across all tables in the hierarchy.

References:

ServiceNow Developer Documentation on Table Inheritance​.

Best practices outlined on SN Pro Tips regarding scoped application development and table structures​.

Search branch and merge branches are available features in Studio. Search branch allows you to search for a specific branch name or ID in your Git repository. Merge branches allows you to merge changes from one branch to another, resolving any conflicts that may arise. Push to external source control and push to update set are not available features in Studio. Push to external source control is a feature of Source Control Integration, which is a separate application from Studio. Push to update set is a feature of Update Set Previewer, which is also a separate application from Studio. Reference: Studio, Source Control Integration, Update Set Previewer

"Application developers must select an application as their current scope context." https://docs.servicenow.com/bundle/tokyo-application- development/page/build/applications/task/t_SelectAnAppFromTheAppPicker.html

A Module Link type defines how the module opens in the content pane when the user clicks on it in the navigation pane1. The URL (from Arguments) link type allows you to specify a URL that opens the Application Properties page for the selected application2. The URL can include arguments that are evaluated at runtime, such as the application name or scope3.

References = 1: Module link types - ServiceNow Docs 2: Application properties - ServiceNow Docs 3: URL (from Arguments) - ServiceNow Docs

https://docs.servicenow.com/bundle/tokyo-application-development/page/script/server-scripting/concept/c_ServerScripting.html

A Record Producer is a type of service catalog item that allows users to create records on a specified table. A Record Producer has the following characteristics:

Graphics can be included on the user interface: You can add images, icons, or banners to the Record Producer to make it more appealing and informative for the user. You can also use HTML and CSS to customize the layout and style of the Record Producer.

You can script behaviors of fields in the user interface: You can use Client Scripts and UI Policies to control the behavior and appearance of the fields on the Record Producer. For example, you can use Client Scripts to validate the field inputs, perform calculations, or populate default values. You can also use UI Policies to show or hide fields, make fields mandatory or read-only, or set field values based on conditions.

Each field prompts the user with a question rather than a field label: You can use the Variable Question field to define the question that prompts the user for the field value. The question can be more descriptive and user-friendly than the field label. For example, you can use the question “What is the name of the project?” instead of the field label “Name”.

The other statements are not true for Record Producers. Record Producers do not always insert records into the Requested Item [sc_req_item] table. They can insert records into any table that is specified in the Record Producer properties. Record Producers also do not have to be scripted. They can use the default script that maps the variable values to the record fields, or they can use a custom script that defines the logic for creating the record.

References:

[Record Producers]

[Record Producer properties]

[Record Producer scripts]

https://docs.servicenow.com/bundle/tokyo-application-development/page/build/applications/task/set-RCA-level.html

https://docs.servicenow.com/bundle/tokyo-application-development/page/app-store/dev_portal/API_reference/GlideQuery/concept/GlideQueryGlobalAPI.html#GlideQueryAPI

https://docs.servicenow.com/bundle/tokyo-application-development/page/app-store/dev_portal/API_reference/glideRecordScoped/concept/c_GlideRecordScopedAPI.html

Self-invoking. Learn JavaScript!

This type of JavaScript function is known as self-invoking or immediately-invoked function expression (IIFE). It is a function that is defined and executed at the same time, without being assigned to a variable or being called by another function. It is often used to create a local scope for variables and avoid polluting the global namespace. References: [W3Schools - JavaScript Function Definitions], [MDN Web Docs - Immediately-invoked function expressions]

Inbound Action scripts are server-side scripts that run when an email is received by the system. They can use the current object to access the record that is created or updated by the email, and the email object to access the properties and methods of the email message. The previous and event objects are not available in Inbound Action scripts. The producer object is only available in Record Producer scripts, which are used to create records from a service catalog item.

References:

Inbound Action scripts

[Record Producer scripts]

https://docs.servicenow.com/bundle/rome-application-development/page/build/applications/concept/c_DefaultDesignAccessPermissions.html

The baseline behavior of a table in a privately-scoped application is that all application scopes can read from the table. A privately-scoped application is an application that restricts write access to its tables and resources to scripts within the same scope. However, read access is allowed by default for all scopes, unless the administrator explicitly denies it using an Access Control rule. This allows for data sharing between different applications while maintaining data integrity and security. References: [Product Documentation | ServiceNow], [Advantages of Scoped Applications in ServiceNow]

Business Rule is server-side, so it uses GlideSystem API. gs.hasRoleExactly doesn't exist

In a Business Rule, the following returns true if the currently logged in user has the admin role:

gs.hasRole(‘admin’). This is the correct answer because gs is the GlideSystem object, which provides methods for performing system operations, and hasRole is a method that checks if the current user has the specified role. For example, gs.hasRole(‘admin’) will return true if the current user has the admin role, and false otherwise.

The following do not return true if the currently logged in user has the admin role in a Business Rule:

g_form.hasRoleExactly(‘admin’). This is not correct because g_form is the GlideForm object, which provides methods for manipulating forms, and hasRoleExactly is a method that checks if the current user has exactly the specified role and no other roles. For example, g_form.hasRoleExactly(‘admin’) will return true if the current user has only the admin role, and false if the current user has the admin role and any other role.

g_form.hasRole(‘admin’). This is not correct because g_form is the GlideForm object, which provides methods for manipulating forms, and hasRole is a method that checks if the current user has the specified role or any role that contains the specified role. For example, g_form.hasRole(‘admin’) will return true if the current user has the admin role or any role that contains the admin role, such as admin_ui or admin_script.

gs.hasRoleExactly(‘admin’). This is not correct because gs is the GlideSystem object, which provides methods for performing system operations, and hasRoleExactly is not a valid method of the gs object. There is no method that checks if the current user has exactly the specified role and no other roles in the gs object. References: Business Rules, GlideSystem, GlideForm

Catalog Client Scripts and Catalog UI Policies are the client-side scripts that apply to Record Producers. Catalog Client Scripts allow you to add or modify functionality on a catalog item or record producer form. Catalog UI Policies dynamically change information on a catalog item or record producer form. UI Scripts, UI Actions, Client Scripts, and UI Policies do not apply to Record Producers. Reference: Catalog client scripts, Catalog UI policies

https://developer.servicenow.com/dev.do#!/learn/learning-plans/tokyo/new_to_servicenow/app_store_learnv2_automatingapps_tokyo_use_application_properties

"Schema map: Provides a graphical representation of the relationships between tables."

https://docs.servicenow.com/bundle/tokyo-platform-administration/page/administer/table-administration/concept/c_TableAdministration.ht ml

A transform map determines the relationships between fields in an import set table and fields in an existing ServiceNow table. It also specifies how to transform the imported data before mapping it to the target table.

References:

1. What Exactly is an Import Set? - ServiceNow Developers

Import set table - ServiceNow Application Development [Book]

Global applications can use Automated Test Framework and Flow Designer features, but not Source Control and Delegated Development features. Source Control and Delegated Development features are only available to scoped applications . References: [Global vs Scoped Applications], [Delegated Development]

In the SOAP Message feature set, we indicate variables using the following syntax: S{variable_name}. This allows us to pass a variable with the specified name from the SOAP message record to the web service function.

References:

Tutorial: Handling a SOAP Response in ServiceNow | John Andersen

ServiceNow SOAP - Cheat Sheet Cheat Sheet by bibingokuldas - Download …

"By default, all application scope scripts can read the table's records but cannot perform any other database operations." https://developer.servicenow.com/dev.do#!/learn/learning-plans/tokyo/servicenow_administrator/app_store_learnv2_securingapps_tokyo_application_access_database_settings

https://docs.servicenow.com/bundle/tokyo-application-development/page/build/applications/task/t_IncludeApplicationData.html

https://docs.servicenow.com/bundle/tokyo-servicenow-platform/page/administer/notification/task/t_CreateANotification.html

https://developer.servicenow.com/dev.do#!/learn/learning-plans/quebec/new_to_servicenow/app_store_learnv2_automatingapps_quebec_when_to_send

The Weight field in an Email Notification determines which notification is sent when multiple notifications are triggered for the same record and recipients. Only the notification with the highest weight is sent. A weight value of zero means the notification is always sent when the notification’s When to send criteria is met. A weight value of -1 means that no email should be sent3. References: Email Notification Weight

Comprehensive and Detailed Step-by-Step Explanation:

Understanding Scoped Applications:Scoped applications in ServiceNow are designed to isolate and protect application-specific code and data. Server-side scripts within scoped applications can use the gs (GlideSystem) object for logging and debugging purposes. However, not all gs methods are appropriate or valid for scoped applications.

Valid Logging Methods in Scoped Applications:

gs.info():This method logs informational messages to the system log. It is commonly used for general-purpose logging when developers need to track execution flow or display debug data. Example:

gs.info('This is an informational log message.');

gs.error():This method logs error messages to the system log. It is used to indicate problems or issues encountered during script execution. Example:

gs.error('An error occurred during script execution.');

Incorrect Options Explained:

gs.debug() (Option B): This method is not valid in scoped applications. It is a legacy logging method available in the global scope but restricted in scoped applications.

gs.iog() (Option C): This is a typographical error and not a valid gs method in ServiceNow.

gs.logError() (Option E): This is not a recognized ServiceNow API method. To log errors, gs.error() is used instead.

Best Practices for Logging:

Logging should be meaningful and avoid unnecessary entries to keep logs clean and manageable.

Avoid excessive use of logging in production environments, as it can clutter the system logs and potentially degrade performance.

References:

ServiceNow Developer Documentation on GlideSystem (gs)​.

SN Pro Tips on debugging and logging practices in scoped applications​.

From: https://docs.servicenow.com/bundle/paris-application-development/page/script/general-scripting/reference/r_ScriptingAlertInfoAndErrorMsgs.html

g_form.showFieldMsg("field_name", "Hello World", "error"); Puts "Hello World" in an error message **below the specified field**. g_form.addInfoMessage() or g_form.addErrorMessage() place a blue box message at the top of the screen. Pg 126 of the CAD handbook

The method that prints a message on a blue background to the top of the current form by default is g_form.addInfoMessage(). The g_form object is a global object that provides access to form fields and UI elements on a form. The addInfoMessage() method is a method of the g_form object that displays an informational message next to the form header. The message has a blue background color by default, unless it is overridden by a CSS style. The addInfoMessage() method takes one argument, which is the message text to display. References: [ServiceNow Docs - GlideForm (g_form) API], [ServiceNow Docs - g_form.addInfoMessage()]

https://docs.servicenow.com/bundle/tokyo-platform-administration/page/administer/form-administration/concept/c_FormDesign.html

The Form Designer is a graphical interface for creating and customizing forms. The following statements are true for the Form Designer:

To add a field to the form layout, drag the field from the Fields tab to the desired destination on the form. This will add the field to the form view without changing the table definition.

To create a new field on a form’s table, drag the appropriate data type from the Field Types tab to the form and then configure the new field. This will create a new column on the table and add the field to the form view.

To remove a field from the form layout, hover over the field to enable the Action buttons, and select the Delete (X) button. This will remove the field from the form view but not from the table definition.

The following statement is false for the Form Designer:

To add a section to the form layout, drag it from the Field Types tab to the desired destination on the form. This is incorrect because sections are not available in the Field Types tab. To add a section, click the Add Section button on the toolbar or right-click on the form and select Add Section. References: Introduction to App Engine Studio for Developers, ServiceNow Studio Overview, Form Designer

https://docs.servicenow.com/bundle/tokyo-application-development/page/build/guided-app-creator/concept/guided-app-creator.html

https://developer.servicenow.com/dev.do#!/learn/learning-plans/rome/new_to_servicenow/app_store_learnv2_scripting_rome_debugging_client_scripts

The following are debugging strategies for client-side scripts, which run in the web browser and manipulate the user interface:

g_form.addInfoMessage(). This is a client-side API that displays an information message at the top of the form.

Field Watcher. This is a debugging tool that displays the current and previous values of one or more fields on a form.

jslog(). This is a client-side API that writes a message to the browser console.

The following is not a debugging strategy for client-side scripts, but for server-side scripts, which run on the ServiceNow platform and manipulate the database:

gs.log(). This is a server-side API that writes a message to the system log. References: Client-Side Scripting APIs, Debugging Client Scripts

"Guided Application Creator is enabled via the Guided Application Creator (com.glide.sn-guided-app-creator) plugin, which is active by default in the Now Platform." Located under "Activation Information" section at this URL:

https://docs.servicenow.com/en-US/bundle/tokyo-application-development/page/build/guided-app-creator/concept/guided-app-creator.html

https://docs.servicenow.com/bundle/tokyo-servicenow-platform/page/administer/notification/task/t_CreateANotification.html

Comprehensive and Detailed Step-by-Step Explanation:

Caller Access Fields:

Accessible from: Defines where the scriptable component (e.g., Script Include) can be accessed, such as "All application scopes" or "This application scope only".

None: Disables access, making the component unavailable for external use.

Caller Restriction: Controls which callers or scripts can access the component.

Why Other Options Are Incorrect:

Option A (Allow Configuration): This is not a valid caller access option.

Option B (Caller Permission) and Option F (Caller Tracking): These are not valid or recognized options in ServiceNow.

References:

ServiceNow Developer Documentation on Caller Access Fields​.

Comprehensive and Detailed Step-by-Step Explanation:

Table Extension in ServiceNow:Extending a table in ServiceNow means creating a child table based on a parent table. The child table inherits the fields, configurations, and functionality of the parent table.

What is Inherited:

Fields: All fields from the parent table are available in the child table.

Functionality: The child table benefits from any business logic or workflows defined for the parent table.

Access Controls: The child table respects the Access Control rules defined for the parent table unless explicitly overridden.

Why Other Options Are Incorrect:

Option B: This is incorrect because the new table does inherit fields from the parent table.

Option C: This is incorrect because you do not need to script or configure behaviors from scratch; they are inherited.

Option D: This is incorrect because Access Controls are not ignored; they still apply and can be extended or modified for the child table.

References:

ServiceNow Developer Documentation on Table Inheritance​.

Access Control scripts are server-side scripts that run when an Access Control rule is evaluated. They can use the gs and current objects to access the GlideSystem and GlideRecord methods, respectively. Some of the useful methods in Access Control scripts are:

gs.hasRole() - This method checks if the current user has a specified role. It returns true if the user has the role, and false otherwise. For example, gs.hasRole(‘admin’) will return true if the user is an administrator, and false otherwise.

current.isNewRecord() - This method checks if the current record is a new record that has not been inserted into the database yet. It returns true if the record is new, and false otherwise. For example, current.isNewRecord() will return true if the record is being created, and false if the record is being updated or deleted.

The methods g_user.hasRole() and current.isNew() are not part of the server-side scripting API. They are part of the client-side scripting API, which is used in Client Scripts and UI Policies. They cannot be used in Access Control scripts.

References:

[Access Control scripts]

[GlideSystem methods]

[GlideRecord methods]

The server-side API debug log method available for scoped applications is gs.info(). This method logs informational messages that describe the progress of the application. Older methods such as gs.print() and gs.log() are not available in scoped applications. The gs.debuglog() method does not exist. The gs.info(), gs.warn(), gs.error(), and gs.debug() methods work in both scoped applications and global, and are therefore more versatile going forward in future versions. Reference: Debugging best practices

Checkbox tooltip: "Show this module when the user has the specified roles. Otherwise the user must have the roles specified by both the application menu and the module."

The following is true for the Override application menu roles configuration option when configuring a module:

Users with the module role but without access to the application menu access the module. This is true because the Override application menu roles option allows users to bypass the application menu role requirement and access the module directly if they have the module role. For example, if a module has the itil role and the Override application menu roles option enabled, and the application menu has the admin role, then a user who has the itil role but not the admin role can still access the module.

The following are not true for the Override application menu roles configuration option when configuring a module:

Self-Service users can access the module even though they do not have roles. This is false because the Override application menu roles option does not grant access to the module to users who do not have any roles. Self-Service users are users who do not have any roles assigned to them and can only access the Self-Service portal and the Knowledge Base. To access the module, users need to have at least the module role.

Admin is given access to the module even if Access Controls would ordinarily prevent access. This is false because the Override application menu roles option does not override the Access Control (ACL) rules that apply to the module. Access Control rules are used to restrict the access to the data and functionality of the ServiceNow platform based on the user’s roles and conditions. Admin is a role

An example of when an application might not use a Scheduled Script Execution (Scheduled Job) is when the application needs to run a client-side script at the same time every day. A Scheduled Script Execution is a server-side script that runs on a specified schedule and performs some action on the server or database. A client-side script runs on the user’s browser and cannot be scheduled by ServiceNow. The other options are examples of when an application might use a Scheduled Script Execution, such as sending email reminders, running a clean up script, or querying the database for unassigned records. Reference: Scheduled Script Execution, Client scripts

https://docs.servicenow.com/bundle/paris-servicenow-platform/page/administer/flow-designer/concept/spokes.html

A spoke is a scoped application containing Flow Designer content dedicated to a particular application or record type. Flow Designer provides a set of core actions to automate Now Platform® processes. You can add application-specific core actions by activating the associated spoke.