Testhouse Associate Consultant Interview Questions and Answers

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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Q1. How to rotate a matrix?
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To rotate a matrix, transpose it and then reverse each row or column depending on the direction of rotation.
• Transpose the matrix by swapping elements across the diagonal

• For clockwise rotation, reverse each row of the transposed matrix

• For anti-clockwise rotation, reverse each column of the transposed matrix
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Q2. How to find a particular element in a sorted array?
Ans. 
Use binary search to efficiently find a particular element in a sorted array.
• Start by comparing the target element with the middle element of the array.

• If the target element is less than the middle element, search the left half of the array.

• If the target element is greater than the middle element, search the right half of the array.

• Repeat the process until the target element is found or the search space is empty.
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Q1. Docker Basics:What is Docker, and how does it differ from traditional virtualization?Explain the purpose of Docker images and containers.Node.js Fundamentals:Describe the event-driven architecture of Node....read more
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Todo application javascript todo app creation needs to submit

Q1. Expected salary, family, future plans
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String , Array ,Collection framework related questions.

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Q1. Html,Css,Js. Interviewer don't have knowledge on Java,React js.And if you don't able to answer basic html,css related questions they will disqualify you.
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Basic Aptitude test and personality test, It's easy

Q1. Code to print diagonal elements in 2d array. Reverse a string without using other empty string.
Ans. 
Print diagonal elements in a 2D array and reverse a string without using an empty string.
• Iterate through the rows and columns of the 2D array and print the elements where the row index is equal to the column index.

• Iterate through the characters of the string from the last index to the first index and append each character to a new string.
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Very easy roundand is it a program to implement Parallel Merge Sort and can measure the performance

Coding and decoding reasoning for the shield season is over now I am not sure