Persistent Systems Software Engineer Interview Questions, Process, and Tips

2 questions were there
1st was easy and 2nd was hard, you can easily code the 1st one but the 2nd can be challenging if you have never been to DSA and competitive coding

Q1. Start with introduction Basic questions were asked based on the technologies you mentioned in your resume. Then about your projects and their impact and how they work behind the scenes. And that's it, the ...read more
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Aptitude with mcqs (on campus)

Q1. Basics of java, oops
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Q2. Sql, python 3 coding problems
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Q1. Basics of HR questions
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Online aptitude test with a MCQ technical questions, 1 coding question

Q1. Technical questions around data structures and pseudo-code
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Q2. Implement conditional hierarchical model for java class
Ans. 
Implementing a conditional hierarchical model for a Java class.
• Create a Java class with multiple levels of hierarchy

• Implement conditional statements to control the behavior of the class based on certain conditions

• Use if-else or switch statements to define different actions for different conditions

• Consider using interfaces or abstract classes for better abstraction and modularity
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Q1. Tell me about your weekness
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MCQs + 2 Coding questions.
MCQs included questions on core subjects.

Q1. Focused on core subject knowledge. 1 coding question 1 DBMS query. CN theory questions
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Q2. DBMS nested query question asked
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Q3. Computer Network questions like layers, DNS, etc.
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Q1. Coding question. DBMS query. OOPS questions
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Q2. DBMS query like insert, Select, etc
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Q3. OOPS questions like what inheritance, Runtime polymorphism, etc.
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Q1. General questions regarding job location, salary, Higher education.
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Difficulty level : Medium

Q1. Easy OOP, DBMS Questions
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Q2. Joins in SQL ?
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT ...read more
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Q3. Primary key foreign key
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Q4. Pillars of OOP ?
Ans. 
Pillars of OOP are Inheritance, Encapsulation, Abstraction, and Polymorphism.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain components of an object, protecting its integrity.

• Abstraction hides complex implementation details and only shows the necessary features.

• Polymorphism allows objects to be treated as instances of their parent class or their
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Basic aptitude questions asked

From strings and arrays

Q1. Tell me about yourself
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Q2. Your projects, your tech stack you worked
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