IRIS KPO Resourcing Senior Software Development Engineer Interview Questions and Answers

1 coding test having a DP question and some spark based questions.

Q1. Fibonacci using DP
Ans. 
Fibonacci using Dynamic Programming
• Use an array to store calculated Fibonacci numbers to avoid redundant calculations

• Start with base cases of 0 and 1, then iterate to calculate subsequent Fibonacci numbers

• Time complexity can be reduced from exponential to linear using DP
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Q2. SQL questions ( ranks and partition)
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Q1. Design based questions
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Q1. Data structures
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Q2. Solid Principles
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Q3. Single responsibility principle
Ans. 
Single responsibility principle states that a class should have only one reason to change.
• Each class should have only one responsibility

• Helps in making code more maintainable and easier to understand

• Promotes separation of concerns

• Example: A class that handles user authentication should not also handle file management
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Q4. Javascript question
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Q5. Object oriented concepts
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Q1. Orientation skills
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Q2. Tell me about yourself
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Q1. Theoretical questions around javascript methods
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Q1. Maximal rectangal
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Q2. Loop in linked list
Ans. 
Loop in linked list is a situation where a node points to a previous node in the list, creating an infinite loop.
• Check for loops using Floyd's cycle detection algorithm

• Use two pointers, one moving twice as fast as the other, to detect a loop

• If the fast pointer catches up to the slow pointer, there is a loop
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Q1. Basic hr question regarding your project and all
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Q2. He was more interested in what is my thinking pattern
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1. The online test includes questions related to spark and a coding questions.

Q1. Questions related to sql , spark, data structures were asked
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Q2. 1. Questions based on window functions (rank, dense_rank)
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Q1. Overall discussion of the projects that you have worked on.
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Discuss cons and pro for is education important to become successful in life?

Q1. Explain oops concept
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include classes, objects, inheritance, polymorphism, and encapsulation.

• Classes are blueprints for creating objects, while objects are instances of classes.

• Inheritance allows a class to i...read more
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Coding was good and it was based on bubble sort