Tata Consultancy Services (TCS) interview experience Real time questions & tips from candidates to crack your interview
System Engineer
Tata Consultancy Services (TCS)
2 rounds | 4 Coding
problems
Rejected
Interview preparation journey
Journey
Hi, I am a Computer Science student 2024 pass out, and I started my placement preparation in my second year. I dedicated a lot of time to practicing coding and aptitude questions, which helped me improve my problem solving skills.
Application story
In January, I applied for TCS NQT through on campus placement and got the opportunity to interview for the Prime role. Unfortunately, I was not selected.
Why selected/rejected for the role?
I was rejected because it was my first interview experience, and I was not fully prepared. My resume did not have strong projects, and my communication skills were not at the required level.
Preparation
Duration: 12 months
Topics: DSA, OOPS, C++, Java, MySQL, Dynamic Programming
Tip 1: Practice coding daily.
Tip 2: Complete at least 3 projects to showcase your practical knowledge.
Tip 3: Work on improving your communication skills.
Application process
Where: Campus
Eligibility: No Backlogs, (Salary Package: 7 LPA)
Tip 1: Include some projects in your resume.
Tip 2: Do not put false information on your resume; be fluent with the skills mentioned.
Tip 3: Add your achievements as well.
Tip 4: Use AI tools to improve the quality of your content.
Interview rounds
01
Round
Medium
Online Coding Interview
Duration180 minutes
Interview date15 Jan 2024
Coding problem2
The test timing was from 2 PM to 5 PM, with first 90 minutes for aptitude and the last 90 minutes for coding. The environment was good. Aptitude section consisted of 60 MCQs based on Mathematics, Reasoning, and English communication.
1. Permutations Of A String
Moderate
15m average time
85% success
0/80
Asked in companies
How many unique ways can this word be arranged?
Problem approach
To solve this problem, I use a brute force approach with recursion. First, I generate all possible permutations of the given words. To ensure uniqueness, I store each permutation in a set. Finally, I return the size of the set, which represents the total number of unique arrangements.
2. Prime Number
Easy
0/40
Asked in companies
Check whether the given number is a prime number or not?
Problem approach
I first used a brute-force approach by checking divisibility from 2 to n-1. However, this method is not good for large numbers.
To optimize the solution, I reduced the number of checks by only verifying divisibility up to square root of n. this help to optimize the time complexity.
and I was able to pass all the test cases.
02
Round
Medium
Face to Face
Duration45 minutes
Interview date17 Feb 2024
Coding problem2
The interview duration was 45–60 minutes. It started with the technical interview after which I got rejected.
1. DBMS
Problem approach
Tip 1: Read the DBMS important point.
Tip 2: Revise it.
Tip 3: Try to solve SQL Queries.
2. Operating System
What is OS? (Learn)
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
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