Cognizant interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Cognizant
2 rounds | 4 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 3 months
Topics: Data Structures, OOPS, Algorithms, Basic Java Concepts, System Design, Aptitude
Tip 1 : Practice good amount of DSA questions
Tip 2 : Do good practice of puzzle, Aptitude and Quant questions
Tip 3 : You should have good knowledge of your project
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Have at least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Interview rounds
01
Round
Medium
Online Coding Interview
Duration180 minutes
Interview date1 Sep 2021
Coding problem2
The first part is of MCQ questions that include different sets with a different topic and each set has specific time and we have to complete that set within that specific time limit. The second part is coding which includes 2 coding questions. Whoever completely solved one question was selected for the next round
1. Count Frequency
Easy
15m average time
85% success
0/40
Asked in companies
You are given a string 'S' of length 'N', you need to find the frequency of each of the characters from ‘a’ to ‘z’ in the given string.
Example :
Given 'S' : abcdg
Then output will be : 1 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Problem approach
Since there are just 26 lower case characters, we can use an array of size 26 to store the result.
2. Add Strings
Easy
0/40
Asked in companies
You are given two non-negative integers, ‘NUM1’ and ‘NUM2’, in the form of strings. Return the sum of both strings.
Note :
You do not need to print anything, it has already been taken care of. Just implement the given function.
Example:
Let ‘NUM1’ be: “5”
Let ‘NUM2’ be: “21”
The sum of both numbers will be: “26”.
Problem approach
The basic idea is to add the character of the strings individually. We run a loop on both strings simultaneously from the end of the strings and add the sum of the characters. We also keep track of carry and update the result. If at any point sum of characters becomes greater than 9, we update the carry to 1.
02
Round
Medium
Video Call
Duration45 minutes
Interview date29 Sep 2022
Coding problem2
This round had questions from my projects followed by some basic questions from OOPS and Java
1. OOPS Question
Define all four pillars of OOPS and give an example for each
2. Java Questions
1- Explain Heap and stack memory in Java.
2- What is Garbage Collector in Java?
3- What is “final” keyword in Java?
4- Difference between equal() method and == operator
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
Similar interview experiences
Software Engineer
4 rounds | 8 problems
Interviewed by Cognizant
Selected 
1449 views
0 comments
0 upvotes
Software Engineer
3 rounds | 3 problems
Interviewed by Cognizant
Selected 1043 views
0 comments
0 upvotes
Software Engineer
2 rounds | 3 problems
Interviewed by Cognizant
Rejected
974 views
0 comments
0 upvotes
Software Engineer
3 rounds | 6 problems
Interviewed by Cognizant
Selected 889 views
2 comments
0 upvotes
Companies with similar interview experiences
Software Engineer
4 rounds | 1 problems
Interviewed by Newgen Software
Selected 3195 views
2 comments
0 upvotes
Software Engineer
3 rounds | 6 problems
Interviewed by HashedIn
Selected 2574 views
0 comments
0 upvotes
Software Engineer
2 rounds | 2 problems
Interviewed by Ernst & Young (EY)
Selected 0 views
0 comments
0 upvotes