Tata Consultancy Services (TCS) interview experience Real time questions & tips from candidates to crack your interview
System Engineer
Tata Consultancy Services (TCS)
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 Months
Topics: Core CS subjects like CN, OS, DBMS, DSA, Aptitude
Tip 1 : Prepare basics of CS subjects, they ask about routing, pointers etc
Tip 2 : Make sure to make atleast 1 project. Though 1 project is sufficient but prepare it's ques well
Tip 3 : Speaking skills will plan a very very imp. role
Application process
Where: Other
Eligibility: 60%
Tip 1 : Mention projects and their details
Tip 2 : Give proper spacing and don't make it of more than 1 page
Interview rounds
01
Round
Easy
Online Coding Interview
Duration90 Minutes
Interview date1 Sep 2019
Coding problem1
Mixture of core CS subject basic question. Most ques. were Aptitude, logical reasoning, english and one coding
1. Maximum Element
Moderate
10m average time
80% success
0/80
Asked in company
There is an array ‘A’ of length ‘N’. You can perform the following operation on the array, select ‘i’, ‘1< i <= N - 1’ and replace ‘A[i]’ with ‘A[i] | A[i - 2]’, where ‘|’ represents bitwise OR operation.
Your task is to find the maximum element ‘X’ you can obtain by operating zero or more times.
Example:
‘A’ = [1, 3, 2, 5]
A[3] = A[3] or A[1] = 3 | 5 = 7
‘A’ = [1, 3, 2, 7]
Hence the maximum element we can obtain is 7.
Therefore, the answer is 7.
Problem approach
I made a single traversal and found the maximum number by comparing it with all elements
02
Round
Easy
Face to Face
Duration20 Minutes
Interview date26 Oct 2019
Coding problem1
It was in-person round at Noida office. We were supposed to report there with all official documents which were thoroughly checked before technical round. Make very sure to carry all mentioned documents as they most probably won't listen anything otherwise.
tech round was mixture of basic questions like pointers in C++, projects and basic chit chat. Questions totally depend upon interviewer and can be random but easy.
Communication skills are at top priority.
1. Technical Questions
what are pointers, why are they used. What is dangelling pointer. What is void pointer
Problem approach
Tip 1 : Read CS core sub. basics properly
03
Round
Easy
HR Round
Duration10 minutes
Interview date26 Oct 2019
Coding problem1
Just after tech round, in few minutes, they will call you for HR round if you cleared tech round.
1. Basic HR Questions
Basic questions like why TCS, are you for Pan India location. What are your hobbies?
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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Choose another skill to practice
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