Tata Consultancy Services (TCS) interview experience Real time questions & tips from candidates to crack your interview

Assistant System Engineer

Tata Consultancy Services (TCS)
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3 rounds | 4 Coding problems

Interview preparation journey

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Preparation
Duration: 3 months
Topics: Java, Data Structure and Algorithms, String, Array, BST, Linked List, DBMS and Computer Network.
Tip
Tip

Tip 1 : Practice previous interview questions.
Tip 2 : Participate in live contests as much as possible.
Tip 3 : Revise Computer Science subjects like DBMS, OOPS thoroughly.

Application process
Where: Company Website
Eligibility: 60%
Resume Tip
Resume tip

Tip 1 : If you've done any projects or internships, include them here, and only provide information that you're confident about.
Tip 2 : Mention your Skills.

Interview rounds

01
Round
Medium
Online Coding Interview
Duration180 minutes
Interview date2 Nov 2021
Coding problem2

1. MCQ Questions

Topics of MCQs :
Quants
English
Logical Reasoning
Programming Logic
Coding Ability

Number Of MCQs - 92

2. Anagram Pairs

Moderate
30m average time
60% success
0/80
Asked in companies
JP MorganNearbuyTata Consultancy Services (TCS)

You are given two strings 'str1' and 'str1'.


You have to tell whether these strings form an anagram pair or not.


The strings form an anagram pair if the letters of one string can be rearranged to form another string.

Pre-requisites:

Anagrams are defined as words or names that can be formed by rearranging the letters of another word. Such as "spar" can be formed by rearranging letters of "rasp". Hence, "spar" and "rasp" are anagrams. 

Other examples include:

'triangle' and 'integral'
'listen' and 'silent'
Note:
Since it is a binary problem, there is no partial marking. Marks will only be awarded if you get all the test cases correct. 
Problem approach

By comparing the frequency of characters in both strings, I was able to address this problem via hashing.

Try solving now
02
Round
Easy
Video Call
Duration30 minutes
Interview date5 Nov 2021
Coding problem1

1. Missing Number

Moderate
30m average time
70% success
0/80
Asked in companies
FacebookAppleAmazon

You are given an array/list ‘BINARYNUMS’ that consists of ‘N’ distinct strings which represent all integers from 0 to N in binary representation except one integer. This integer between 0 to ‘N’ whose binary representation is not present in list ‘BINARYNUMS’ is called ‘Missing Integer’.

Your task is to find the binary representation of that ‘Missing Integer’. You should return a string that represents this ‘Missing Integer’ in binary without leading zeros.

Note

1. There will be no leading zeros in any string in the list ‘BINARYNUMS’.

Example:

Consider N = 5 and the list ‘binaryNums’=  [“0”, “01”, “010”, “100”, “101”].  This list consists of the binary representation of numbers [0, 1, 2, 4, 5]. Clearly, the missing number is 3 and its binary representation will be “11”. So you should return string “11”.
Problem approach

I have use the XOR approach to solve this problem.

Try solving now
03
Round
Easy
HR Round
Duration30 minutes
Interview date10 Jun 2022
Coding problem1

1. Basic HR Questions

Tell me about yourself.

Tell me about your skills.

What is your career goal?

Problem approach

Tip 1 : Be confident during an Interview. 
Tip 2 : Never Lie to your interviewer.

Here's your problem of the day

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

Skill covered: Programming

To make an AI less repetitive in a long paragraph, you should increase:

Choose another skill to practice
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