Plasma Computing Group Software Engineer Interview Questions and Answers

It is easy and you can clear it.

It was moderate and hard questions

Q1. What are oops concepts in java, explain real time scenario
Ans. 
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects to take on multiple forms and behave differently based on their context.

• Encapsulation hides the implementation details of an object and only exposes necessary information.

• Abstraction allows for the creation of abstract class...read more
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Q2. Uses of interface, inheritance
Ans. 
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
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Q3. SQL query for join of tables
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SQL query for joining tables
• Use JOIN keyword to combine two or more tables based on a related column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the condition for joining the tables

• Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
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Q4. Java concepts used in your project
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Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
• Implemented inheritance to create a base class and derived classes with specific functionalities.

• Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.

• Implemented exception handling to handle errors and prevent program crashes.

• Used interfaces to define a set of methods that a ...read more
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Q5. Overloading vs overriding, practical uses
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Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Overloading is used to provide different ways to call a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading is resolved at compile-time while overriding is r...read more
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Logical reasoning and Aptitude

Functions with Pointers and strings concepts

Q1. Mainly on Pointers and Dynamic Memory Allocation of 2-D Array
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Q2. Structure Padding and Packing
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Q1. Linked list question to detect cycle
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Q2. Basic questions from JS
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Q1. Some questions related to my projects
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Q2. Some Questions related to my past experience
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Q1. Map reduce filter in javascript
Ans. 
Map, reduce, and filter are higher-order functions in JavaScript used to manipulate arrays.
• Map: Transforms each element in an array and returns a new array with the transformed elements.

• Reduce: Reduces an array to a single value by applying a function to each element.

• Filter: Creates a new array with elements that pass a certain condition.
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Q2. Exception handling
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First round is online test of 3 virtual rounds consist of aptitude , and coding

Q1. Matrix multiplication
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Q2. Singly linked list
Ans. 
A singly linked list is a data structure where each element points to the next element in the list.
• Each node in the list contains data and a reference to the next node

• Traversal starts from the head node and follows the next pointers until the end

• Insertion and deletion can be done efficiently at the beginning or end of the list
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Conducted on Online platform of company
Consisting of aptitude debugging and psuedo codes

Pen and paper round
Consisting of simple output

Q1. It tested aptitude the question was a simple matching the columns of a product delivery process
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Q1. Was both a technical and HRDidn't make it to HR round but it consisted of easy questions only.
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1 round is coding round in pan paper test atleast 5 coding questions and some multiple questions and 1 DSA questions and 4 coding questions correct and dsa correct than interview