Web services are software systems that use standardized protocols and formats, such as XML and HTTP, to exchange data and messages between different applications or systems over the Internet or other networks12. Web services enable interoperability and integration among diverse software components, regardless of their programming languages, platforms, or architectures34.
Reference = 1: What are Web Services? - GeeksforGeeks 2: Web service - Wikipedia 3: What are Web Services? - Online Tutorials Library 4: What is a Web Service? | Webopedia

In ServiceNow, UI Actions are elements such as buttons, links, and context menu items that allow users to perform actions on records or lists. The three valid UI Action types are:
1. List Banner Button (Option A)
Description: A button that appears in the list view header, allowing users to trigger an action affecting multiple records at once.
Example: A "Bulk Approve" button that processes selected records.
2. Form Button (Option B)
Description: A button that appears on a form, allowing users to trigger actions related to the current record.
Example: A "Submit for Approval" button on an incident form.
3. Record Navigation Button (Option D)
Description: A button that helps users navigate between related records.
Example: A "Go to Parent Record" button that redirects users to a linked record.
Incorrect Options:
Form Choice (Option C):
Not a UI Action type. Choices are typically used in choice fields (dropdowns) rather than UI actions.
List Choice (Option E):
Not a valid UI Action type. Similar to "Form Choice," it pertains to field options rather than UI elements.
Workflow Action (Option F):
Workflows are process automation tools, not UI Actions. They are not directly related to buttons or links that users interact with.
Reference:
For more details, see the official ServiceNow documentation on UI Actions.

In ServiceNow, to create a module that directs users to a Record Producer (a simplified form for creating records), you should use the "URL (from Arguments)" Link Type. This configuration allows you to specify a direct link to the Record Producer.
Steps to Configure:
Navigate to Module Creation:
Go to the Application Menu where you want to add the module.
Click on "Edit Application Menu" and then "New Module."
Set Link Type:
In the module's configuration, set the Link Type to "URL (from Arguments)." Define the URL:
In the Arguments field, provide the URL to the Record Producer. The URL typically follows this pattern:
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servicenow_instance_url/com.glideapp.servicecatalog_cat_item_view.do?sysparm_id=record_producer_sys_id Replace servicenow_instance_url with your instance's URL and record_producer_sys_id with the sys_id of the Record Producer.
Explanation of Other Options:
HTML (from Arguments): Used to display custom HTML content. Not suitable for linking directly to Record Producers.
Content Page: Used to display predefined content pages within ServiceNow. Not applicable for direct Record Producer links.
Script (from Arguments): Allows execution of a script to determine the module's behavior. This is more complex and unnecessary for simply linking to a Record Producer.

A). Selecting Global in the Application Picker sets the Application Scope to Incident: This is incorrect. Selecting "Global" sets the scope to the global application, not specifically to the Incident application.
B). Global is a reserved application that does not appear in the Application Picker: This is incorrect. The "Global" application is available in the Application Picker and represents the global scope.
C). Selecting an application from the Application Picker sets the Application Scope: This is correct. Choosing an application from the Application Picker establishes that application's scope as the current context for development and configuration.
D). Selecting an application from the Application Picker does not set the Application Scope: This is incorrect. The Application Picker directly influences the current Application Scope.
For more information, refer to the official ServiceNow documentation on Application Scope.
For a visual demonstration of restricting access to your ServiceNow application, you may find the following video helpful:
Restricting Access to your ServiceNow App
Explanation:
In ServiceNow, the Application Picker is a user interface element that allows developers to select the active application they are working on. The selected application determines the Application Scope, which defines the boundaries within which application artifacts (like tables, scripts, and UI components) reside and operate.