HSO Associate Consultant Interview Questions and Answers

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
Answered by AI
View 1 more answer
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
Answered by AI
Add your answer
Q3. SQL query for join of tables
Ans. 
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
Answered by AI
Add your answer
Q4. Java concepts used in your project
Ans. 
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
Answered by AI
Add your answer
Q5. Overloading vs overriding, practical uses
Ans. 
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
Answered by AI
Add your answer

Normal apptitude queations were asked in this round

Q1. Questions on javascript Basic of HTML, CSS
Add your answer

Q1. Spring boot related questions
Add your answer
Q2. Java related questios
Add your answer

Q1. Linked list question to detect cycle
Add your answer
Q2. Basic questions from JS
Add your answer

Q1. Some questions related to my projects
Add your answer
Q2. Some Questions related to my past experience
Add your answer

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.
Answered by AI
Add your answer
Q2. Exception handling
Add your answer

Verbal,logical thiniking questions

Medium level questions like 2d array reverse , sort 2d array

Objective test,coding test,technical test

Python,c++,java,html,css

Round 1: Round 1 was an MCQ exam. The time allotted was 45 minutes and 30 questions had to be answered. There was negative marking for wrong answers(-1)

This was a programming round. We were given 4 questions that had to be solved in 1 hour. The coding questions were-

Matrix multiplication
Program to write linear convolution
A question based on graphs
Another question on the 2D array.