Code360 powered by Coding Ninjas X Naukri.com. Code360 powered by Coding Ninjas X Naukri.com
Cognizant interview experience Real time questions & tips from candidates to crack your interview

Data Scientist

Cognizant
upvote
share-icon
3 rounds | 1 Coding problems

Interview preparation journey

expand-icon
Preparation
Duration: 3 months
Topics: Machine Learning Algorithms, Projects, SQL
Tip
Tip

Tip 1 : Prepare Project Properly
Tip 2 : Practice Sql Querries with joins
Tip 3 : Practice DSA

Application process
Where: Campus
Eligibility: 60%
Resume Tip
Resume tip

Tip 1 : Mention atleast 2 projects
Tip 2 : Mention atleast 2 programing language

Interview rounds

01
Round
Medium
Online Coding Interview
Duration180 Minutes
Interview date14 Aug 2021
Coding problem1

3 rounds.
1) Technical MCQ's DSA, SQl ,Code snippets,SQl querries, DSA problem
2) Techincal round
3) HR round

1. Majority Element

Easy
15m average time
85% success
0/40
Asked in companies
Thought WorksAmazonPaytm (One97 Communications Limited)

You have been given an array/list 'ARR' consisting of 'N' integers. Your task is to find the majority element in the array. If there is no majority element present, print -1.

Note:
View more
Try solving now
02
Round
Easy
Video Call
Duration35 Minutes
Interview date30 Aug 2021
Coding problem0

The interview started with tell me about yourself.
Then he asked what projects you have done? I told about projects which i did in coding ninjas Ml course i.e Text classification and Sentiment analysis. 
He asked what all i did in it. The he asked where did you collect the dataset. What was data set about? what all categories were there in dataset. 
How did you did the cleaning process.
How did you select the features set.
How was you performance your your own model in comparison to inbuilt
what is precision and recall.
how could you improve your accuracy?
In last he shared a Link which of live code he gave a very simple question just to check if i know the syntax of python or not.. Since i did not mention python in my resume and i told i did ML in python.
Question was :
Given a number (passed in function call) you need to return the absolute value. (dont usne inbuilt abs function)

03
Round
Easy
HR Round
Duration10 Minutes
Interview date5 Sep 2021
Coding problem0

It was a very simple round
Asked to share my adhaarcard, Pancard and 10th marksheet.
The person asked two question:
1)do you know any foreign language?
2) are you willing to do 6 month intern?

Here's your problem of the day

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

Minimum number of operands are required to use relational operators?

Start a Discussion
Similar interview experiences
company logo
SDE - Intern
3 rounds | 2 problems
Interviewed by Cognizant
653 views
0 comments
0 upvotes
company logo
SDE - 1
2 rounds | 5 problems
Interviewed by Cognizant
891 views
0 comments
0 upvotes
company logo
Data Scientist
2 rounds | 5 problems
Interviewed by Cognizant
925 views
1 comments
0 upvotes
company logo
Program Analyst
2 rounds | 6 problems
Interviewed by Cognizant
67 views
0 comments
0 upvotes
Companies with similar interview experiences
company logo
Data Scientist
3 rounds | 4 problems
Interviewed by Tata Consultancy Services (TCS)
743 views
0 comments
0 upvotes
Data Scientist
2 rounds | 11 problems
Interviewed by Ernst & Young (EY)
898 views
0 comments
0 upvotes