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Persistent Systems
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Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation detai...
super is used to refer immediate parent class instance variable or method, while this is used to refer current class instance variable or method.
super is used to access parent class members, while this is used to access current class members
super keyword is used to invoke parent class constructor, while this keyword is used to invoke current class constructor
super keyword is used to differentiate between parent and chi...
Yes, we can call queueable class from batch class.
Batch class can call a queueable class to perform additional processing after the batch job completes.
Queueable class can be called from the finish method of the batch class.
This allows for asynchronous processing of data.
Example: Batch class processes records and calls a queueable class to send email notifications.
Persistent Systems interview questions for designations
I applied via Naukri.com and was interviewed before Feb 2023. There were 2 interview rounds.
A simple program to print 'Hello, World!'
Declare a string variable to store the message
Assign the value 'Hello, World!' to the variable
Print the value of the variable
I applied via Recruitment Consulltant and was interviewed before Aug 2022. There were 5 interview rounds.
What people are saying about Persistent Systems
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
I am an experienced Module Lead with expertise in Automation framework design and end-to-end testing activities.
I have designed and implemented automation frameworks using tools like Selenium and Appium.
I have experience in creating reusable components, libraries, and utilities for automation.
I have conducted end-to-end testing activities including test planning, execution, and reporting.
I have worked on continuous int...
User types in SAP include end users, power users, and administrators.
End users are regular users who perform day-to-day tasks in the system.
Power users have advanced permissions and can configure settings.
Administrators have full control over the system and manage user roles and permissions.
SOD risk in GRC refers to Segregation of Duties risk in Governance, Risk, and Compliance.
SOD risk occurs when one individual has the ability to execute multiple conflicting duties within an organization.
It can lead to fraud, errors, or misuse of resources due to lack of checks and balances.
Examples include a finance manager who can both approve payments and reconcile accounts, or an IT administrator who can both create
Transport process involves planning, organizing, and executing the movement of goods or people from one place to another.
Planning the route and mode of transportation
Organizing the logistics and scheduling
Executing the actual movement of goods or people
Monitoring the progress and ensuring timely delivery
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
A program to find if a given string is a palindrome or not.
Create a function that takes a string as input
Reverse the string and compare it with the original string
If they are the same, then the string is a palindrome
A collection is a group of related items or objects stored together.
Collections can be of various types such as arrays, lists, sets, maps, etc.
They are used to store and manipulate multiple items in a structured way.
Examples include an array of integers, a list of names, a set of unique values, a map of key-value pairs.
A view is a virtual table created by a query that can be used like a table in a database.
A view is a saved SQL query that can be accessed like a table.
Views can simplify complex queries by storing them as a virtual table.
Views can be used to restrict access to certain columns or rows of a table.
Example: CREATE VIEW view_name AS SELECT column1, column2 FROM table_name;
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