Persistent Systems Software Engineer Interview Questions, Process, and Tips

Online aptitude test with 2 code

Q1. Basic oops concepts 2 basic code Basic software development questions
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Q1. SQL - Find duplicate, Order BY Reverse a Linked List Real-life examples for Stack and Queues
Ans. 
SQL query to find duplicates, reversing a linked list, real-life examples of stacks and queues
• To find duplicates in SQL, use GROUP BY and HAVING clauses

• To reverse a linked list, iterate through the list and change the pointers

• Stacks: back button in a web browser, undo feature in text editors

• Queues: waiting in line at a grocery store, printer queue for printing documents
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Q2. Will ask questions about Projects
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First round had coding questions()DSA

This round was again a coding test to get higher package. (DSA questions)

Q1. This was the one and only interview round. Easy question were asked related to DSA and salesforce
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It is easy to crack aptitude test

Q1. Asked o DSA is, networking, code, sql
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They ask basic questions and three coding question final salary depends on how many coding question u clear

Q1. Hr roud with two coding question.Strings and time based questions
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Q1. OOPs based questions, SQL query questions, ACID properties, Project Discussion
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Q2. Four pillars of OOPs
Ans. 
Encapsulation, Inheritance, Polymorphism, Abstraction
• Encapsulation: Bundling data and methods that operate on the data into a single unit

• Inheritance: Ability to create a new class that inherits attributes and methods from an existing class

• Polymorphism: Ability to present the same interface for different data types

• Abstraction: Hiding the complex implementation details and showing only the necessary features
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Q3. Behavioral questions
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