100+ Servicenow Developer Interview Questions and Answers

To calculate the timing of an incident assigned to multiple groups, determine the start and end times for each group and calculate the total duration.

• Identify the groups to which the incident is assigned

• Determine the start time and end time for each group's involvement

• Calculate the duration for each group

• Sum up the durations to get the total timing of the incident

Service catalog, order guide, and record producer are different components in ServiceNow for managing and fulfilling service requests.

• Service catalog is a centralized repository of services that users can request.

• Order guide is a collection of related services grouped together for easy selection and ordering.

• Record producer is a form-based interface that allows users to create records in different tables.

• Service catalog provides a self-service portal for users to browse and r...read more

To populate manager using server-side code, you can query the user table and retrieve the manager's details based on the user's ID.

• Use GlideRecord to query the user table

• Retrieve the manager's details using the user's ID

• Set the manager field with the retrieved manager's details

Program to print a pattern using stars in Python

• Use nested loops to print the desired pattern

• Increment the number of stars in each row to create the pattern

• Example: Printing a pyramid pattern with stars

ITIL is a framework for IT service management, while ITIL admin role is a job role responsible for implementing and managing ITIL processes.

• ITIL is a set of best practices for IT service management

• ITIL admin role involves implementing and managing ITIL processes

• ITIL admin role is responsible for ensuring that ITIL processes are followed and optimized

• ITIL admin role requires knowledge of ITIL framework and experience in IT service management

• ITIL admin role may involve creating...read more

To create a flow for automation of a business process, you can use a workflow automation tool like Servicenow Flow Designer.

• Identify the business process that needs to be automated

• Map out the steps involved in the process

• Use Servicenow Flow Designer to create a visual workflow

• Add conditions, actions, and approvals as needed

• Test the flow to ensure it functions correctly

• Deploy the automated flow to streamline the business process

Inbound refers to data coming into ServiceNow, while outbound refers to data going out of ServiceNow.

• Inbound data is typically received through integrations, email, web services, etc.

• Outbound data is usually sent to external systems, APIs, email notifications, etc.

• Inbound actions can trigger workflows or create records in ServiceNow.

• Outbound actions can update external systems or send notifications to users.

Code to auto-close parent incident when all child incidents are closed

• Create a script that runs on child incident closure

• Check if all child incidents are closed

• If all child incidents are closed, close the parent incident

UI policy and client script are both used in ServiceNow for controlling field behavior and data on forms.

• UI policy is used to dynamically change field properties, visibility, and mandatory status based on certain conditions.

• Client script is used to add custom logic and behavior to forms, such as field validation, calculations, and UI interactions.

• UI policy is executed on the server side, while client script is executed on the client side.

• UI policy is defined using a simple dr...read more

Code to display last 10 incidents in background script

• Query incident table to get last 10 records

• Use GlideRecord to fetch incident records

• Sort records by created date in descending order

Asynchronous Business Rule is a rule that runs in the background without blocking the user interface.

• Executes in the background without blocking the UI

• Used for long-running tasks

• Improves performance and user experience

• Examples: sending emails, updating records, etc.

Using none.* in ACL will allow access to all fields in the table for all users.

• Using none.* in ACL grants access to all fields in the table for all users.

• This can be a security risk as sensitive data may be exposed to unauthorized users.

• It is recommended to specify individual fields or use more restrictive ACL conditions.

There are two types of conditions in a workflow: condition builder and script condition.

• Condition builder allows for creating conditions using a visual interface

• Script condition allows for writing conditions using scripting languages like JavaScript

ITSM life cycles include Incident, Problem, Change, and Request Management.

• Incident Management: Focuses on restoring normal service operation as quickly as possible.

• Problem Management: Focuses on identifying and solving the root cause of recurring incidents.

• Change Management: Involves controlling changes to the IT infrastructure to minimize impact on services.

• Request Management: Handles user requests for IT services or information.

Program to find Palindrome sub-strings in a given string.

• Iterate through each character in the string and check for palindromes.

• Use two pointers to expand around the center of each character to find palindromes.

• Store the palindromes in an array of strings.

Program to separate numbers and alphabets in a given array of elements.

• Iterate through each element in the array

• Check if the element is a number or alphabet using regular expressions

• Store numbers and alphabets in separate arrays

Script to mask a single line text field value

• Use the 'onLoad' client script to mask the value on form load

• Use the 'onSubmit' client script to mask the value before saving

• Use the 'getDisplayValue' and 'setDisplayValue' methods to manipulate the field value

Use JavaScript to restrict input field to alphanumeric characters only.

• Use JavaScript event listeners to detect input in the field.

• Check each character entered using regular expressions to allow only alphanumeric characters.

• Display an error message if a non-alphanumeric character is entered.

Data policy ensures data consistency, UI policy controls form level behavior

• Data policy defines rules for data consistency and integrity

• UI policy controls the behavior of form fields and sections

• Both policies can be applied at different levels such as table, field, or form

• Data policy can prevent invalid data entry and enforce data standards

• UI policy can hide or make fields mandatory based on user roles or conditions

Types of business rules, client scripts, variables, variable sets, ways to import update sets, and service catalog management in ServiceNow development.

• Types of business rules include onBefore, onAfter, async, etc. Example: onBefore business rule to validate form data before submission.

• Client scripts are used for client-side scripting. Example: Client script to show a pop-up message on a form field change.

• Variables are used to store data within a record. Example: Variable sto...read more

Use SQL query to retrieve all columns, show only 10 records, and order by name

• Use SELECT * to retrieve all columns

• Use LIMIT 10 to show only 10 records

• Use ORDER BY name to order the results by name

Answers to interview questions for ServiceNow Developer position.

• CI (Configuration Item) represents a single, manageable component of an IT infrastructure.

• Asset is a tangible or intangible item that is owned by an organization.

• To call a script include from the client side, use the 'g_form' object and the 'getScript' method.

• Record producer is used to create new records in a specific table, while Service Catalog is a collection of record producers and catalog items.

• To create ne...read more

To set the default value of a date field to the current date time value, use a script to assign the value.

• Create a client script or business rule to set the default value

• Use the GlideDateTime API to get the current date time value

• Assign the current date time value to the date field

Integrations in ServiceNow are made using APIs, web services, and scripting.

• Use REST APIs to integrate with external systems

• Leverage SOAP web services for bi-directional communication

• Utilize scripting such as JavaScript to automate processes

• Use MID Server for secure communication with on-premise systems

Yes, I have worked on integrations.

• I have experience integrating ServiceNow with third-party applications using REST APIs.

• I have also worked on integrating ServiceNow with other ServiceNow instances using SOAP APIs.

• I have used MID Server for integrating ServiceNow with on-premise applications.

• I have experience in creating custom integrations using ServiceNow IntegrationHub.

• I have worked on integrating ServiceNow with cloud-based applications like Salesforce and AWS.

It depends on the specific requirements of the integration. REST is generally preferred for its simplicity and flexibility, while SOAP is more rigid but offers more security features.

• REST is lightweight and easier to use for simple integrations

• SOAP has built-in security features like WS-Security

• Consider the complexity of the data being exchanged and the level of security required when choosing between REST and SOAP

The checkbox for client callable on script include allows the script include to be called from client-side scripts.

• Client callable checkbox allows the script include to be accessed from client-side scripts in ServiceNow.

• It enables the script include to be used in UI policies, client scripts, and other client-side scripts.

• By checking the client callable checkbox, the script include can be invoked using GlideAjax calls from client scripts.

When searching a record on global search in ServiceNow, the platform performs a search across all tables and fields to find relevant results.

• ServiceNow platform uses the search index to quickly retrieve relevant records

• Search results are displayed based on relevance and permissions

• Users can refine search results using filters and sorting options

Asynchronous business rules run in the background while after business rules run after the record is processed.

• Asynchronous business rules are executed in the background without blocking the user interface.

• After business rules are executed after the record is processed, potentially impacting user experience.

• Asynchronous business rules are typically used for tasks that do not require immediate user interaction.

• After business rules are commonly used for tasks that need to be co...read more

Use indexed for loop instead of for each loop to reduce time complexity.

• Indexed for loop has a constant time complexity of O(1) whereas for each loop has a time complexity of O(n).

• Indexed for loop is faster when accessing elements in an array.

• Example: for (int i = 0; i < array.length; i++) { //access array[i] }

• Example: for (String str : stringArray) { //access str }

Cloud computing involves storing and accessing data and programs over the internet instead of on a computer's hard drive.

• Cloud computing allows users to access data and applications from any device with an internet connection.

• It provides scalability, flexibility, and cost-efficiency for businesses.

• Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

REST APIs in ServiceNow allow users to interact with the platform programmatically.

• REST APIs in ServiceNow can be used to create, read, update, and delete records in tables.

• Authentication is required to access REST APIs, using basic authentication or OAuth.

• REST API endpoints in ServiceNow follow a standard format: https://.service-now.com/api/now/

• REST APIs can be tested using tools like Postman or cURL.

ServiceNow is a cloud-based platform that provides IT service management, IT operations management, and IT business management solutions.

• ServiceNow helps organizations to streamline their IT operations and improve efficiency.

• It offers a range of modules such as Incident Management, Change Management, Problem Management, and Service Catalog.

• ServiceNow can be customized to meet the specific needs of an organization.

• It can also be integrated with other tools and systems to provi...read more

Use GlideUser class to get logged in user details in a form

• Use GlideUser class to get the current user's details

• Access user details like name, email, roles, etc. using GlideUser methods

• Example: var user = gs.getUser(); var userName = user.getName();

ACL works from general to specific

• ACL evaluates rules from general to specific based on order of precedence

• If a user has multiple roles, the most specific role takes precedence

• Explicit rules take precedence over inherited rules

• ACL rules can be defined at table, field, and record levels

The different between =, ==, === is related to assignment, equality, and strict equality in programming.

• = is used for assignment in programming languages.

• == is used for equality comparison, it checks if two values are equal.

• === is used for strict equality comparison, it checks if two values are equal in both value and data type.

An asset is a physical or virtual item that has financial value, while a CI is any item that needs to be managed for IT purposes.

• Assets are typically tangible items, such as hardware or software licenses, that have a monetary value.

• CIs are any items that need to be managed for IT purposes, such as servers, applications, or network devices.

• Assets are often tracked in financial systems, while CIs are tracked in IT service management systems.

• An asset can be a CI, but not all CIs...read more

A scheduled report is a report that is automatically generated and sent at a specified time and frequency.

• Scheduled reports can be set up to run daily, weekly, monthly, or at a custom interval.

• They can be sent via email or saved to a specific location.

• Scheduled reports can be used to provide regular updates on key metrics or to automate repetitive reporting tasks.

Private functions in script include are only accessible within the script include itself.

• Private functions are defined using the 'private' keyword.

• They are used for encapsulation and to hide implementation details.

• Private functions cannot be called from outside the script include.

• Example: private function calculateTotal() { // implementation }

Client side scripts run on the user's browser, while server side scripts run on the server.

• Client side scripts are executed on the user's browser, providing immediate feedback without needing to communicate with the server.

• Server side scripts are executed on the server, allowing for secure processing of sensitive data and operations.

• Client side scripts are written in languages like JavaScript, while server side scripts are written in languages like Java or Python.

No, current.update() cannot be used in Business Rules (BR).

• current.update() is not supported in Business Rules as it can lead to infinite loops.

• Use current.setValue() or current.setAbortAction(true) instead in Business Rules.

• Example: current.setValue('state', 2);

ServiceNow ITSM is a cloud-based IT service management platform that helps organizations manage their IT services efficiently.

• ServiceNow ITSM includes modules for incident management, problem management, change management, and more.

• It allows organizations to automate and streamline their IT service delivery processes.

• ServiceNow ITSM provides a centralized platform for IT teams to collaborate, communicate, and track service requests.

• It offers reporting and analytics capabiliti...read more

Use business rules to trigger email notifications to assigned to when planned end date is crossed.

• Create a business rule on the Change Request table

• Set the condition to check if planned end date is crossed

• Use script to send email notification to assigned to

Use GlideRecord to fetch backend values in ServiceNow

• Use GlideRecord to query records from tables in ServiceNow

• Use filters and conditions to fetch specific records

• Access fields and values from the fetched records

There are two types of sorting - ascending and descending. There are various types of searching like linear search, binary search, etc.

• Sorting: Ascending, Descending

• Searching: Linear search, Binary search, Hashing, etc.

To add approval in flow designers, use the 'Approval' activity and configure the approval settings.

• Drag and drop the 'Approval' activity onto the flow designer canvas

• Configure the approval settings such as approvers, conditions, and notifications

• Connect the 'Approval' activity to the relevant steps in the flow

• Test the flow to ensure the approval process works correctly

Subject to refers to the person or entity affected by an incident, while opened for refers to the person or entity responsible for resolving the incident.

• Subject to is the entity that is impacted by an incident, such as a user or a department.

• Opened for is the entity responsible for resolving the incident, such as a support team or an individual.

• For example, a ticket may be subject to a specific department but opened for the IT support team.