Cognizant Servicenow Application Developer Interview Questions and Answers

There are multiple ways to call server side code from client side, including AJAX, WebSockets, and REST API calls.

• AJAX

• WebSockets

• REST API calls

To create a new request type in ITSM, follow these steps.

• Navigate to the Service Catalog in the ITSM module.

• Click on 'Create New' to start creating a new request type.

• Fill in the necessary details such as name, description, and category.

• Define the workflow for the request type, including approval processes and assignment rules.

• Test the new request type to ensure it functions correctly.

• Publish the request type for users...read more

Restrict characters for 'Investment' field in incident table to 500 characters using UI policy.

• Create a UI policy on the incident table

• Add a condition to check the length of the 'Investment' field

• Set the UI policy action to display an error message if the character limit is exceeded

GFST submit is used to submit a GlideFormState object in ServiceNow.

• GFST submit is used to save the current state of a form in ServiceNow.

• It is commonly used in client-side scripts to save form data without refreshing the page.

• GFST submit can be used to trigger business rules and workflows upon form submission.

Yes, 'IT Service Manager' role description and short description should be visible.

• Role description should clearly outline the responsibilities and requirements of the IT Service Manager position

• Short description should provide a brief overview of the role to attract potential candidates

• Both descriptions should be easily accessible on the job posting or company website

Client scripts in ServiceNow are used to automate processes on the client side.

• onChange

• onLoad

• onSubmit

Client script runs before UI Policy due to the order of execution in ServiceNow.

• Client script runs before UI Policy because it is executed on the client side before the form is submitted.

• UI Policy runs after Client script as it is applied after the form is submitted.

• Client script is used for field-level validation and manipulation, while UI Policy is used for controlling field visibility and mandatory fields.

Business rules in ServiceNow can be categorized as before, after, async, and synchronous. After business rules run after a record is inserted or updated, while async business rules run in the background.

• Types of business rules in ServiceNow: before, after, async, synchronous

• After business rules run after a record is inserted or updated

• Async business rules run in the background without blocking the user interface

• Differe...read more

Yes, the order of Business rules can be changed.

• Yes, the order of Business rules can be changed by adjusting the order in which they are executed in the Business rule list.

• This can be done by changing the 'Order' field value in the Business rule record.

• Business rules with lower 'Order' values will be executed before those with higher 'Order' values.

• Changing the order of Business rules can impact the overall behavior an...read more

Email notifications in ServiceNow can be customized using scripts for dynamic content and conditions.

• Use 'Email Notification' module to create notifications based on specific conditions.

• Scripts can be added to the 'Condition' field to determine when to send an email.

• Example: Use 'current.state.changes()' to trigger an email when the state changes.

• Utilize 'Email Template' for consistent formatting and dynamic content in...read more

The isolate checkbox is used to prevent a script from running in the global scope.

• Prevents variables and functions from being accessed globally

• Helps in avoiding conflicts with other scripts

• Useful when developing complex applications with multiple scripts

xml() and xml() wait are both used in ServiceNow to parse XML data, but xml() wait is used for asynchronous parsing.

• xml() is used for synchronous parsing of XML data in ServiceNow

• xml.wait() is used for asynchronous parsing of XML data in ServiceNow

• xml() is blocking, while xml.wait() allows other operations to continue while parsing XML data

To achieve UI actions in ServiceNow, use client scripts for client-side and business rules for server-side execution.

• Use Client Scripts for UI actions that need to run on the user's browser.

• Use Business Rules for server-side logic that should execute on record changes.

• Example: A Client Script can validate a form before submission, while a Business Rule can update a field based on that submission.

• You can call server-sid...read more

Update 'Investment' field in incident table from Standard to SMA for all records

• Create a script to update the 'Investment' field in incident table for all records

• Use a loop to iterate through each record and update the 'Investment' field value from Standard to SMA

Yes, we can use 'previous' in Business rule to access the previous value of a field.

• Use 'previous' keyword in a Business rule to access the previous value of a field

• Can be helpful in comparing current and previous values for triggering actions

• Example: gs.info('Previous value: ' + current.previous.value)

get reference is used to retrieve a reference to a record in another table

• Used to establish relationships between records in different tables

• Allows for easy access to related information

• Can be used in scripts to retrieve data from related records