Thursday, 11 April 2019

ServiceNow Interview Questions Part 1

What is ServiceNow?

ServiceNow is a software platform that supports IT service management and automates common business processes. It contains a number of modular applications that can vary by instance and user.
Q. What do you mean by term “Application” in servicenow?
Application is a group of modules which provides its related information.For example change application provides the information related to change process. It consist of modules like create change ticket,view change tickets etc.
Q. What is the latest ServiceNow user interface and when it was released?
UI16 is the most recent of the supported UI versions. These release notes apply to UI16 only
Q. What is full form of CMDB ?
Configuration Management Database
Q. What is CMDB Baseline ?
CMDB baselines helps to understand and control the changes that have been made to a configuration item(CI) after its Baseline has been created. Baseline is the snapshot of a CI
Q. How to enable or disable an application ?
Navigate to “Application Menus” module under system definition application.Open the respective application that require to be enable or disable.Set active as true to enable it or set active to false to disable it
Q. What is a view ?
View defines the arrangement of fields on a form or a list. For one single form we can define multiple views according to the user preferences or requirement.
Q. What is ACL?
An ACL is access control list that defines what data a user can access and how they can access it in service now.
Q. What do you mean by impersonating a user? How it is useful?
Impersonating a user means that you can log in to the system as that user and can have feel how the service-now UI is set for that user.This is very useful while testing.For example if you are required to test that a user can access change form or not.You can impersonate that user and can test instead of logging out from your session and logging again with that user credentials.
Q. Which is the Parent table for incident,change and problem ?
Task table
Q. What is a record producer ?
A record producer is a type of a catalog item that allows users to create task-based records from the service catalog.For example you can create a change record or problem record using record producer. Record producers provides an alternative way to create records through service catalog
Q. What is dictionary override?
Dictionary Overrides provides the capability to override several properties of a field in extended table.For example change table is extended from task table.There is a field named status in task table and set as read-only.When we use this field in change form it will show be a read only.We can set this to non-read only by using the dictionary override.Similarly there are other properties that can be set for the fields in extended table.
Q. What do you mean by coalesce?
Coalesce is a property of a field that we use in transform map field mapping.When we set the coalesce as true for a field mapping it signifies that this field will work as unique key.If a field match is found with the coalesce field, then existing record will be updated with the imported information in target table else a new record will be inserted into the target table
Q. What is an UI policy?
UI policies are alternative to client scripts.It can be used to set a field as mandatory, readonly and visible on a form. You can also use UI policy for dynamically changing a field on a form.
Q. What is a data policy?
Data policy checks the mandatory and read-only of a field whenever a record is inserted or updated through a web-service or import set.For example: If a mandatory field in the incoming record (from import set or web-service) is empty then the data policy will not allow to insert that record into the table.
Q. What is difference between UI policy and data policy ?
UI policy acts when a record is inserted or updated through a servicenow UI i.e servicenow forms while data policy acts whenever a record is inserted or updated into database through any means.
Q. What is a client script?
Client script sits on the client side(the browser) and run there only.types of client script are OnLoad() OnSubmit() OnChange() OncellEdit)
Q. How can you cancel a form submission through client script?
In the onSubmit function return false. function onSubmit() {
                     return false;
}

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