LTI - Larsen & Toubro Infotech interview experience Real time questions & tips from candidates to crack your interview

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LTI - Larsen & Toubro Infotech
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3 rounds | 6 Coding problems

Interview preparation journey

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Journey
I applied to L&T Technology Services through my university job portal in the month of Dec'20. Before getting a call for the process, I applied as a fresher so my primary goal of preparation was to be clear with the CS fundamentals- OS, DBMS, DSA basics and one programming language with OOPs concepts. These topics helped me to crack the first round of aptitude which comprises of basic aptitude maths problems and CS fundamentals. For programming, have a good understanding of iteration (loops) questions as most questions were based on that. Apart from this, practice the top 100 programming questions from easy to medium level as it will give you a complete understanding of all the types of questions which can be asked. Other than this, I gave a revision to the testing domain where-in I understood the STLC (software testing life cycle) model, different types of software testing and the key differences between them. All these things mentioned helped me crack very easily the process of L&T Technology Services as a Test Engineer.
Application story
I applied through my university's career portal and got a revert for the process in a month. The complete process was conducted virtually and it consists of three rounds. The first round was the aptitude round, the second round was the technical interview and the third round was the HR discussion. The first round was primarily based on MCQ-based type of questions and 3 programming questions. Upon clearing the first round, was asked to be a part of a technical interview where-in they mostly asked about the projects I've done, technologies used and the questions based on the technology. Then they moved to basic iteration questions where they gave me a situation and asked me to write the code for the following and I was able to do that. In the last round, where they mostly discussed the job type, relocation and general talk to have an understanding of your English language and whether you're able to communicate fluently. After the third round, I got the offer letter within 3 days.
Why selected/rejected for the role?
Yes, I was selected for the role I applied for through my campus. It was a great feeling and honestly, if you're prepared with the above things, I'm sure no interview can stop you to outshine. Just start working on topics you think you need practice and you will see the difference in the interview. At last, carry a smile while walking in and out of the interview room no matter how was the interview. It will create an impact on the interviewers and always accept if you don't know any question rather than saying any irrelevant to fill the answer. Interviewers do notice these small things as well.
Preparation
Duration: 3 months
Topics: Database management systems (DBMS), Data structures and algorithms (DSA), Operating systems (OS), Object-oriented programming (OOPs), Software testing lifecycle (STLC), Iterations (loops), CS fundamentals
Tip
Tip

Tip 1: Start understanding the fundamentals of any one programming language (OOPs would be beneficial)
Tip 2: Try to write one code every day for any problem you see or come across be it making a simple calculator
Tip 3: Break your problem set into single units to have a clear understanding and practice more different types of questions rather than sticking to one category and practising 50 problems. Instead, take one topic and solve 10 questions and move on to the next topic.

Application process
Where: Campus
Eligibility: 60 percent throughout
Resume Tip
Resume tip

Tip 1: Write more about the projects you've done & the technologies you used in it.
Tip 2: Always stick to a single-page resume format

Interview rounds

01
Round
Easy
Online Coding Interview
Duration90 minutes
Interview date15 Jan 2021
Coding problem3

It was an MCQ round where in it consist of 30 questions divided into different categories as stated below and it was a general screening round to shortlist the candidates.

1. Output Question

Predict the output of the following code:

-#include using namespace std;   

class Test {     

int value; public:    

 Test(int v = 0) { 

value = v; }     

int getValue()  { 

return value; } };  

 int main() {     

const Test t;     

cout << t.getValue();    

 return 0; }

Problem approach

Compilation Error (In the above program, object ‘t’ is declared as a const object. A const object can only call const functions. To fix the error, we must make getValue() a const function)

2. Output Question

Predict the output of the following code:

-#include 

 using namespace std;  

int main(){   

 cout << sizeof("GeeksforGeeks") << endl;    

cout << strlen("GeeksforGeeks");    

return 0;

}

Problem approach

14
13

3. DBMS Question

What does the following statement in SQL do?

DROP TABLE student;

Problem approach

Deletes the table called student

02
Round
Medium
Face to Face
Duration45 minutes
Interview date22 Jan 2021
Coding problem2

This round was conducted during the daytime only (between 08:00 AM to 06:00 PM) and it was a virtual process so we joined using teams and got our process done. The technical interview took some 40 minutes.

Easy
10m average time
90% success
0/40
Asked in companies
EcomExpressIndus Valley PartnersMAQ Software

You have given two positive integers N and K. Your task is to print a series of numbers i.e subtract K from N until it becomes 0 or negative then add K until it becomes N. You need to do this task without using any loop.

For Example:
For  N = 5 , K = 2 
Series = [ 5, 3, 1, -1, 1, 3, 5]
Problem approach

I figured out how we can reach the solution since it was an iterative one, I wrote a code based on the conditions and was able to get my answer. To crack this, always look for what your problem is demanding. If it is something that requires multiple times to run the same line of code, better iterate it and get the solution in one go.

Try solving now

2. Reverse Words In A String

Easy
10m average time
90% success
0/40
Asked in companies
Thought WorksFacebookApple

You are given a string 'str' of length 'N'.


Your task is to reverse the original string word by word.


There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.


Example :
If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.
Try solving now
03
Round
Easy
HR Round
Duration20 minutes
Interview date25 Jan 2021
Coding problem1

It was more like a general discussion wherein the HR executive will introduce you to more about the company, giving you input for the role you will work (if selected) meanwhile understanding your knowledge of the English language.

1. Basic HR Questions

Are you comfortable relocating to the business location if asked?

Problem approach

Tip 1 : Always say yes if you're encountered such questions. They want to know that you're really interested in joining the organisation and will relocate for better opportunities as well if asked in the future (say onsite)
Tip 2 : Be confident and carry a smile always and give a pleasant impression to the interviewer

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

How do you remove whitespace from the start of a string?

Choose another skill to practice
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