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42Gears Mobility Systems Interview Questions and Answers
11 Interview questions
Regression testing ensures that new code changes do not adversely affect existing functionality.
Verifies that previously developed and tested software still performs after changes.
Can be automated to save time and increase efficiency.
Example: After adding a new feature, regression tests confirm that existing features still work.
Often performed after bug fixes, enhancements, or updates to the software.
Helps identif...
Array List can be implemented in a stack by using an array and keeping track of the top element.
Create an array to store the elements of the stack.
Keep track of the top element using a variable.
For push operation, add the element to the top of the stack and increment the top index.
For pop operation, remove the top element and decrement the top index.
To find the minimum number of swaps needed to sort an array
Use graph theory to find cycles in the array
Count the number of swaps needed to fix each cycle
Add up the swaps needed for all cycles to get the total minimum swaps
The Two Sum problem involves finding two numbers in an array that add up to a specific target sum.
Use a hash map to store numbers and their indices for quick lookup.
Iterate through the array, calculating the complement (target - current number).
Check if the complement exists in the hash map; if yes, return the indices.
Example: For nums = [2, 7, 11, 15] and target = 9, return [0, 1] because 2 + 7 = 9.
Find the 3rd largest number in an array without sorting by tracking the largest values.
Initialize three variables: first, second, and third to hold the largest, second largest, and third largest values.
Iterate through the array, updating these variables as needed.
Example: For array [3, 1, 4, 4, 5], first = 5, second = 4, third = 3.
Handle cases where there are duplicates by ensuring the values are distinct.
I am highly hands-on with technologies, possess strong leadership skills, and have a customer-centric approach to product development.
I am proficient in troubleshooting issues individually and staying up-to-date with current technologies.
I have demonstrated strong management and leadership skills by driving big initiatives and focusing on customer-based product development.
I am aware of any skills gaps and continu...
Expression Equality Checker
Given two strings representing expressions in variables, determine if they are equivalent. Return 'YES' if the expressions are identical and 'NO' if they are different. Each exp...
Check if two expressions are equivalent by evaluating them with different variable assignments.
Parse the expressions to evaluate them with different variable assignments.
Use a stack to keep track of operands and operators while evaluating the expressions.
Compare the results of both expressions to determine if they are equivalent.
Convert Binary Tree to Mirror Tree
Convert a given binary tree into its mirror tree, where the left and right children of all non-leaf nodes are interchanged.
Input:
An integer ‘T’ denoting the number of...Convert a binary tree into its mirror tree by interchanging left and right children of non-leaf nodes.
Traverse the tree in a recursive manner and swap the left and right children of each node.
Modify the binary tree in place to get the mirror, without creating a new tree.
Use a temporary variable to swap the left and right children of each node.
Matrix Element Cube Sum Problem
For a given M x N sized 2D array 'MATRIX', find and return the value of (i * i + j * j) for elements where the sum of the cubes of its digits equals the element itself. Here...
Find and return the value of (i * i + j * j) for elements in a 2D array where the sum of the cubes of its digits equals the element itself.
Iterate through the 2D array and check if the sum of the cubes of the digits equals the element itself.
Calculate (i * i + j * j) for elements that satisfy the condition.
Return the calculated values as output.
If no element satisfies the condition, return -1.
Cycle Detection in a Singly Linked List
Determine if a given singly linked list of integers forms a cycle or not.
A cycle in a linked list occurs when a node's next points back to a previous node in the l...
Detect if a singly linked list forms a cycle by checking if a node's next points back to a previous node.
Traverse the linked list using two pointers, one moving one step at a time and the other moving two steps at a time.
If the two pointers meet at any point, it indicates the presence of a cycle in the linked list.
To optimize, use Floyd's cycle detection algorithm for O(N) time complexity and O(1) space complexity...
42Gears Mobility Systems Interview Experiences
15 interviews found
Harshith M P 1SG20IS036
Selected
I applied via Recruitment Consulltant and was interviewed in Aug 2024. There were 3 interview rounds.
Aptitude Had around 50 Questions which cover Logical,Quantitative, Code snippets
(3 Questions)
- Q1. Two Sum in Coding
- Q2. Differences in final,Finally,Finalize
- Q3. Basic Sql operations
(3 Questions)
- Q1. Array List Implementation in Stack for Push and pop
- Ans.
Array List can be implemented in a stack by using an array and keeping track of the top element.
Create an array to store the elements of the stack.
Keep track of the top element using a variable.
For push operation, add the element to the top of the stack and increment the top index.
For pop operation, remove the top element and decrement the top index.
- Q2. Finding 3rd Largest Number in an Array without using Sort
- Q3. Finding the min number of Swap in Sorting of Array
- Ans.
To find the minimum number of swaps needed to sort an array
Use graph theory to find cycles in the array
Count the number of swaps needed to fix each cycle
Add up the swaps needed for all cycles to get the total minimum swaps
Interview Preparation Tips
Skills evaluated in this interview
Anonymous
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. 1st Round Aptitude : Normal Maths, Probably, Percentage, Relations and Logical Questions with a bit of General Knowledge and Current Affairs
- Q2. 2nd round Programming - Coast of Codeville Problem. The one where you fit people of a target weight into 2 minimum boats.
- Q3. Conditional Sum Problem, with constraints.
- Ans.
Calculate the sum of numbers in a list based on given conditions or constraints.
Identify the conditions: e.g., sum only even numbers.
Iterate through the list and apply conditions.
Use a variable to accumulate the sum.
Example: For [1, 2, 3, 4], sum of evens is 2 + 4 = 6.
Consider edge cases: empty list, all negatives, etc.
- Q4. Turning the Matrix to 90°
- Ans.
Rotate a given matrix by 90 degrees clockwise in-place or using additional space.
Transpose the matrix: Swap elements at (i, j) with (j, i). Example: [[1, 2], [3, 4]] becomes [[1, 3], [2, 4]].
Reverse each row: After transposing, reverse each row to achieve the 90° rotation. Example: [[1, 3], [2, 4]] becomes [[3, 1], [4, 2]].
In-place rotation: For a square matrix, you can rotate it in-place without using extra space.
Cons...
- Q5. 3rd Round Technical Round Java OOPs concepts Inheritance implementation as live programming. Project Related Questions: The better your project is the more they don't trust you, questions get harder and tw...
Interview Preparation Tips
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Questions based on resume
- Q2. Question based on resume
Interview Preparation Tips
(1 Question)
- Q1. Basics of java, oops and other technical questions
Selected
I applied via Recruitment Consulltant and was interviewed in Aug 2023. There were 4 interview rounds.
(2 Questions)
- Q1. Many questions related to you domain and be ready for solution with cost and timelines
- Q2. Be ready for your domain based questions, case studies, practical exp, real world problems and solutions
(1 Question)
- Q1. They will understand the technical background and quality thinking
(1 Question)
- Q1. Compensation, Flexible, background verification, qualifications & other discussions.
Selected
I applied via Approached by Company and was interviewed before Apr 2023. There were 2 interview rounds.
(1 Question)
- Q1. 1. Team Engagements real time experience. 2. Problem solving skills 3. upskilling plans and goals execution 4. Budget and cost savings questions 5. Team Building and culture Questions 6. Identifying potent...
(1 Question)
- Q1. 1. How Hands on technologies even now ? can you work and troubleshoot issues individually ? 2. Management Approach & Leadership skills demonstration to Org Competencies ? 3. Current Technology vs Skills v...
- Ans.
I am highly hands-on with technologies, possess strong leadership skills, and have a customer-centric approach to product development.
I am proficient in troubleshooting issues individually and staying up-to-date with current technologies.
I have demonstrated strong management and leadership skills by driving big initiatives and focusing on customer-based product development.
I am aware of any skills gaps and continuously...
Interview Preparation Tips
- Technical Leadership
Skills evaluated in this interview
(1 Question)
- Q1. INTRODUCTION OF YOUSELF
- Ans.
I am a motivated sales professional with a passion for connecting with clients and driving results through effective communication.
Background: I have a degree in Business Administration, which has equipped me with essential sales and marketing skills.
Experience: I previously worked as a sales intern at XYZ Corp, where I helped increase lead generation by 30% through targeted outreach.
Skills: I excel in building relatio...
Selected
I applied via Approached by Company and was interviewed before Apr 2023. There were 4 interview rounds.
Online Test with BA questions
(1 Question)
- Q1. Manager Interview
(1 Question)
- Q1. Discussion with VP
(1 Question)
- Q1. Basic stuff regarding company policies and Remuneration discussion
Selected
I appeared for an interview before Mar 2024.
(2 Questions)
- Q1. Can you tell me about yourself?
- Q2. What is regression testing?
- Ans.
Regression testing ensures that new code changes do not adversely affect existing functionality.
Verifies that previously developed and tested software still performs after changes.
Can be automated to save time and increase efficiency.
Example: After adding a new feature, regression tests confirm that existing features still work.
Often performed after bug fixes, enhancements, or updates to the software.
Helps identify uni...
(2 Questions)
- Q1. What are your salary expectations?
- Ans.
I expect a competitive salary based on my experience and industry standards, ideally in the range of $120,000 to $150,000.
Research industry standards: For example, Glassdoor and Payscale provide insights into salary ranges for similar roles.
Consider my experience: With over 8 years in software development, I bring valuable skills that justify a higher salary.
Location matters: Salaries can vary significantly based on ge...
- Q2. What was your last working date at your previous company?
Selected
I applied via Approached by Company and was interviewed before Dec 2022. There were 4 interview rounds.
(1 Question)
- Q1. A few questions related to MDM Technocratically.
(1 Question)
- Q1. Deep technical questions.
(1 Question)
- Q1. Related to my previous years of experience.
Interview Preparation Tips
Selected
I applied via LinkedIn and was interviewed before Dec 2023. There was 1 interview round.
Asked to create a simple api in node.js
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42Gears Mobility Systems Reviews and Ratings
based on 116 reviews
Rating in categories
|
Member Technical Staff
36
salaries
|  ₹5 L/yr - ₹14 L/yr |
|
Software Engineer
35
salaries
| ₹3.8 L/yr - ₹15.6 L/yr |
|
Technical Support Engineer
32
salaries
| ₹5.1 L/yr - ₹15.5 L/yr |
|
Softwaretest Engineer
24
salaries
| ₹3 L/yr - ₹8.8 L/yr |
|
Test Engineer
18
salaries
| ₹4 L/yr - ₹7.5 L/yr |
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