QX Global Group IT Network Engineer Interview Questions and Answers

Round duration - 126 minutes
Round difficulty - Hard

This round consist of coding questions as well as mcqs based on aptitude as well as some domain sections. This round is hard.

Q1. 
Maximum Path Sum in a Matrix
Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row...read more
Ans. 
Find the maximum sum path in a matrix from top row to bottom row by moving down or diagonally.
• Use dynamic programming to keep track of maximum sum at each cell.

• At each cell, consider the maximum sum from the cell above, left diagonal, and right diagonal.

• Add the current cell value to the maximum of the three possibilities.

• Repeat this process for all cells in the matrix to find the maximum sum path.
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Q2. 
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...read more
Ans. 
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
• Iterate through the matrix to find elements with value 1

• Store the row and column indices of these elements

• Update the entire row and column for each element found to be 1
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Round duration - 45 minutes
Round difficulty - Easy

In this round the interviewer ask few questions related to domain and at last he ask some behavioral questions.

Q1. 
Intersection of Linked List Problem
You are provided with two singly linked lists containing integers, where both lists converge at some node belonging to a third linked list.
Your task is to determine t...read more
Ans. 
Find the node where two linked lists merge, return -1 if no merging occurs.
• Traverse both lists to find the lengths and the last nodes

• Align the starting points of the lists by adjusting the pointers

• Traverse both lists simultaneously until a common node is found
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Q1. Core language and logical basic oops questions you have to learn
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Q2. 1. Tell me about your self, 2. How many years of experience you have in which is your core language? 3. Explain me oops concepts? 4. Focus on inheritance & abstraction questions? 5. Give some logical codin...read more
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Q1. It’s basically HR screening round, HR will ask you few questions like, work experience, core technology and CTC and few relatively questions
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Q1. Few basics technical questions.
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Q1. They will ask all relatives questions l, like where will you see yourself in 5 years and few questions related to team management.
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Q1. RF Parameters,KPI implementation,UL DL Throughput,SINR,RARP
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Q1. Salary Discussion and Documents
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Q1. About HT and LT Transmission , Distribution and Backup Systems
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Q2. About work place and culture
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Q1. What is oop? What is inheritance? What is cooling?
Ans. 
OOP is a programming paradigm that uses objects to represent and manipulate data. Inheritance is a mechanism for creating new classes based on existing ones. Cooling is not a relevant term in software engineering.
• OOP stands for Object-Oriented Programming

• In OOP, objects are instances of classes that encapsulate data and behavior

• Inheritance allows a new class to be based on an existing class, inheriting its properties a...read more
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Q2. Good. Bbbbbbbb Goodjjjjjhjjjjjjj Goodyuhjhhhhh
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1-hour exam, few math questions, and few technical were asked, and all were MCQs

Very general topics were asked to check our communication skills

Q1. Intro, DBMS, SQL questions, OOPs concepts, and real-life examples, About the project I worked in, were asked. Most of the questions are based on the resume.
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Q2. OOPs- inheritance, encapsulation code on it overloading, overriding concept and coding question
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Q3. Coding questions on strings
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