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Larsen & Toubro Limited Full Stack Developer Interview Questions and Answers

Updated 27 Dec 2021

Larsen & Toubro Limited Full Stack Developer Interview Experiences

1 interview found

I was interviewed before Dec 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 70 Minutes
Round difficulty - Medium

This round consists of Aptitude questions, Java oops concepts MCQ questions, SQL questions, and 2 Coding questions

This round conducted around 11 AM

The environment is good, You can't change the window so googling the answers is not possible. you have to be quick to answer most of the questions, Don't spend too much time on 1 question, Just mark that question, so that if you have time you can complete it in the end

The interviewer was strict, no cheating allowed, Mobiles are kept in Bag

  • Q1. 

    Reverse Integer Problem Statement

    Given a 32-bit signed integer N, your task is to return the reversed integer. If reversing the integer causes overflow, return -1.

    Input:

    The first line contains an int...
  • Ans. Implementation

    The idea is to use the fact that the input ‘N’ is a 32 bit signed integer.  So, as mentioned, -2147483648 <= ‘N’ <= 2147483647. In this range, for ‘N’ = 10  *  x + y, the ‘N’ can never attain a value when |x| = INT_MAX / 10, y = 8 or 9 for x > 0 and y = -9, for x < 0.

     

    Therefore, it is sufficient to check |x| > INT_MAX / 10 (i.e. x > INT_MAX / 10 or x < INT_MIN / 10...

  • Answered Anonymously
  • Q2. 

    Longest Common Prefix Problem Statement

    You are given an array ‘ARR’ consisting of ‘N’ strings. Your task is to find the longest common prefix among all these strings. If there is no common prefix, you ha...

  • Ans. Iterative Scanning

    In this approach, we will iterate through each character of the first string and check if the same character exists in each string or not. We will maintain a variable longestPrefix to store the longest common prefix.

     

    We will traverse idx from 0 to the length of ARR[0] -1.

    1. We will iterate index from 1 to N-1 and check if ARR[index][idx] is equal to ARR[0][idx].
    2. If the condition is true for all strin...
  • Answered Anonymously
Round 2 - Face to Face 

(1 Question)

Round duration - 45 Minutes
Round difficulty - Medium

It was night when my interview was scheduled ,Interviewer asked the questions on SQL, Angular, DBMS,OOPS Concepts, Java programming, Operating system ,Some 1-2 is tough and others questions I answered very well, He asked me to explain oops concepts like polymorphism ,Encapsulation, Inheritance with the help of real life examples.He asked to code 1 pattern question at end.

  • Q1. 

    Selection Sort Problem Statement

    Implement the Selection Sort algorithm to sort an unsorted array of non-negative integers in non-decreasing order. The algorithm should repeatedly find the minimum element...

  • Ans. Selection Sort Approach

    Selection sort is a standard sorting algorithm that uses nested loops to find all the minimum elements in the array in each iteration and swap them with the starting element of the unsorted region of the array.

     

    Steps :

    • Use a minValue variable to find the index of the minimum element of the array.
    • Use a loop to iterate over all the elements of the array.
    • Use a nested loop to find the minimum ele...
  • Answered Anonymously

Interview Preparation Tips

Professional and academic backgroundI applied for the job as Fullstack Developer in PuneEligibility criteriaAbove 70%Larsen & Toubro (L&T) interview preparation:Topics to prepare for the interview - Java OOPs Concepts, Spring, MVC, REST API,Hibernate, My SQL, React JS,SeleniumTime required to prepare for the interview - 5 MonthsInterview preparation tips for other job seekers

Tip 1 : Prepare each concept and implement it by developing an application, to have a better understanding of topics learned
Tip 2 : A few questions from DB were also asked like SQL aggregate functions, joins, and Stored procedures Interviewer will ask to write a SQL query, so prepare this part very well
Tip 3 : learn git commands, how to push and pull your code , resolve merge conflicts, and use Continous Integration, deploy code using Jenkins

Application resume tips for other job seekers

Tip 1 : In Resume Mention the topics you know very well, don't write the topics like Docker, Machine learning just to impress
Tip 2 : Explain your Internship, Projects in detail(In bullet Points, Specify tech stack used in the projects) and you should have a clear idea of the Project you implemented

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Javascript basic questions
  • Q2. Javascript basic questions
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at SIES College of Management Studies (SIESCMS) and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

IT WAS BASIC AND EASY TO SOLVE

Round 2 - Technical 

(2 Questions)

  • Q1. OOPS CONCEPT OF JAVA
  • Ans. 

    OOPS concepts in Java refer to the principles of Object-Oriented Programming such as inheritance, encapsulation, polymorphism, and abstraction.

    • Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

    • Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

    • Polymorphism...

  • Answered by AI
  • Q2. JAVA SPRING BOOT

Interview Preparation Tips

Interview preparation tips for other job seekers - COVER YOUR BASIC PROPERLY

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Telle about yourself
  • Ans. 

    I am a passionate software developer with experience in Java, Python, and web development.

    • Experienced in Java, Python, and web development technologies

    • Strong problem-solving skills

    • Familiar with Agile methodologies

    • Worked on projects involving database management systems

    • Continuous learner and always looking to improve

  • Answered by AI
  • Q2. Deep knowledge in node js
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Mar 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Basic level of Q asked based on math ,english and programming

Round 2 - Coding Test 

Easy to medium level 7 Q asked and minimum 4 is compulsory for crack next round

Round 3 - One-on-one 

(1 Question)

  • Q1. It was like personal interview asked about familiy background and all
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Logical and Maths ,Sql,Java

Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Sep 2023. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Based on your CV
Round 2 - Technical 

(1 Question)

  • Q1. Based on the project and skill they are in need
Round 3 - HR 

(2 Questions)

  • Q1. General HR and code of conduct explained
  • Q2. General discussions
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Data types in SQL. Write prime number logical code in SQL
  • Ans. 

    SQL data types and prime number logic code

    • SQL data types include integer, float, varchar, etc.

    • To write prime number logic in SQL, use a loop to check if a number is divisible by any number less than itself

    • Example: DECLARE @num INT = 7; SELECT CASE WHEN COUNT(*) = 2 THEN 'Prime' ELSE 'Not Prime' END FROM (SELECT 1 AS num UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6) AS n

  • Answered by AI
Round 2 - HR 

(1 Question)

  • Q1. Why do you want to join us?

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. About the projects, React concepts, Node Js concepts,
  • Q2. Database concepts, UI concepts , Express , axios call

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare yourself properly, should know all the UI concepts , React concepts, generic components.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Mar 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Coding skills related to web and database
Round 3 - HR 

(1 Question)

  • Q1. General aptitude and behavioral questions
Round 4 - Group Discussion 

To upper management related to software practices

Interview Preparation Tips

Interview preparation tips for other job seekers - Be know to your niche, focus in clarity of thoughts than giving random answers

Larsen & Toubro Limited Interview FAQs

How to prepare for Larsen & Toubro Limited Full Stack Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Larsen & Toubro Limited. The most common topics and skills that interviewers at Larsen & Toubro Limited expect are Javascript, JQuery, HTML, JSON and XML.

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Larsen & Toubro Limited Full Stack Developer Salary
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