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Yatra Data Scientist Intern Interview Questions and Answers

Updated 28 Mar 2021

Yatra Data Scientist Intern Interview Experiences

1 interview found

Interview Questionnaire 

4 Questions

  • Q1. Machine learning learning maths Linear regression maths
  • Q2. Ols
  • Q3. Mission value imputation
  • Q4. Python ( loops )

Interview questions from similar companies

I was interviewed before Mar 2021.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Self-introduction and basic knowledge of accounting terms

Interview Preparation Tips

Interview preparation tips for other job seekers - Be active and read thoroughly about the organization

I applied via LinkedIn and was interviewed in Sep 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. How your work will increase our revenue? By sharing the data we can improve our services.
  • Ans. 

    Sharing data insights can help improve services and identify revenue opportunities.

    • Analyzing customer behavior can help identify areas for improvement

    • Identifying trends in sales data can help optimize pricing strategies

    • Using data to personalize marketing efforts can increase customer engagement

    • Predictive modeling can help identify potential revenue opportunities

    • Tracking key performance indicators can help optimize busi

  • Answered by AI
  • Q2. Do you believe in the overtime if yes then why? I don believe in the rare cases we should help our team mates

Interview Preparation Tips

Interview preparation tips for other job seekers - Stay cool and be optimistic.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Sql, advance Excel formulas
Interview experience
2
Poor
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - One-on-one 

(7 Questions)

  • Q1. Explain Moving Average
  • Ans. 

    Moving Average is a statistical technique used to analyze data points by creating a series of averages of different subsets of the full data set.

    • Moving Average helps in smoothing out fluctuations in data to identify trends over time.

    • It is calculated by taking the average of a specific number of data points within a defined window.

    • For example, a 3-day moving average for stock prices would be the average of the stock pri...

  • Answered by AI
  • Q2. Explain Decorators
  • Ans. 

    Decorators in Python are functions that modify the behavior of other functions.

    • Decorators are denoted by the @ symbol followed by the decorator function name.

    • They allow you to add functionality to an existing function without modifying its code.

    • Common use cases include logging, timing, and authentication.

    • Example: @decorator_function def function_to_decorate(): pass

  • Answered by AI
  • Q3. Explain Object Oriented Programming
  • Ans. 

    Object Oriented Programming is a programming paradigm based on the concept of objects, which can contain data and code.

    • OOP focuses on creating objects that interact with each other to solve complex problems.

    • Objects have attributes (data) and methods (functions) that can manipulate the data.

    • Encapsulation, inheritance, and polymorphism are key principles of OOP.

    • Example: In a car simulation program, a 'Car' object can hav...

  • Answered by AI
  • Q4. Explain classes objects
  • Ans. 

    Classes are blueprints for creating objects in object-oriented programming.

    • Classes define the properties and behaviors of objects

    • Objects are instances of classes

    • Classes can inherit properties and behaviors from other classes

    • Classes can have constructors to initialize objects

    • Classes can have methods to perform actions

  • Answered by AI
  • Q5. Explain Functions
  • Ans. 

    Functions are blocks of code that perform a specific task and can be reused multiple times in a program.

    • Functions help in organizing code and making it more modular.

    • They can take input parameters and return output values.

    • Functions can be called multiple times from different parts of the program.

    • Examples: summing two numbers, finding the maximum value in a list.

  • Answered by AI
  • Q6. Pandas and Numpy
  • Q7. Swap L1 and L5 in a list
  • Ans. 

    Swap L1 and L5 in a list

    • Create a temporary variable to store the value of L1

    • Assign the value of L5 to L1

    • Assign the value of the temporary variable to L5

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cleartrip Data Analyst interview:
  • Advanced Python
  • Advanced SQL
  • Advanced Excel
Interview preparation tips for other job seekers - The Job Description Listed Excel, SQL Data Visualization as key skills and python would be an add on. But all questions were asked on advanced python which may not be relevant for data analysis.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Internshala and was interviewed in Nov 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Are you proficient in Excel . Why should we hire you for this role .
  • Ans. 

    Yes, I am proficient in Excel and have experience using it for data analysis, creating charts, and managing spreadsheets.

    • Proficient in Excel for data analysis

    • Experience in creating charts and graphs

    • Skilled in managing spreadsheets

    • Familiar with advanced functions and formulas

    • Ability to manipulate and organize data efficiently

  • Answered by AI
  • Q2. Basic accounting knowledge Soft skills

Interview Preparation Tips

Interview preparation tips for other job seekers - Always going for an interview be confident and be your natural self , be honest and diplomatic where ever needed . Hold a confident straight posture and smile.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
No response

I was interviewed in Aug 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Calculate no of rows after join
  • Ans. 

    Calculate the number of rows after joining two datasets.

    • Count the number of rows in each dataset

    • Perform the join operation

    • Count the number of rows in the resulting dataset

  • Answered by AI
  • Q2. Split person name in excel
  • Ans. 

    Use Excel's text to columns feature to split person names into separate columns.

    • Select the column containing the full names

    • Go to the Data tab and click on Text to Columns

    • Choose 'Delimited' and select the delimiter that separates the names (e.g. space)

    • Click Finish to split the names into separate columns

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Duration - 1hr, Mostly questions are from Excel and SQL ( But a little knowledge of R and Python is very useful) .For me, it's knowing the concepts and answering no codes were ask to write.

Round 2 - One-on-one 

(1 Question)

  • Q1. Basic 1-on-1 round with your manager/ or any senior from the company
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Bacis questions for freshers

Interview Preparation Tips

Interview preparation tips for other job seekers - For intern and freshers there will be basic questions regarding the process and it will not though for them

I was interviewed before Feb 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 65 minutes
Round difficulty - Easy

There were 2 sections – 
Aptitude and Logical Reasoning and MCQ based on Java question ,C++, coding for 20 min and 45 min respectively.
Section A- Not very difficult to clear this round although less time was a problem.
Section B- It contains 15 multiple choice question on c/c++,java and 4 simple coding questions

  • Q1. 

    Cycle Detection in a Singly Linked List

    Determine if a given singly linked list of integers forms a cycle or not.

    A cycle in a linked list occurs when a node's next points back to a previous node in the ...

  • Ans. 

    Detect if a singly linked list forms a cycle by checking if a node's next pointer points back to a previous node.

    • Traverse the linked list using two pointers, one moving at double the speed of the other.

    • If the two pointers meet at any point, there is a cycle in the linked list.

    • Use Floyd's Cycle Detection Algorithm for O(N) time complexity and O(1) space complexity.

  • Answered by AI
Round 2 - Coding Test 

(3 Questions)

Round duration - 75 minutes
Round difficulty - Medium

It was an online coding test in which 3 coding question were given.

  • Q1. 

    Smallest Window Problem Statement

    Given two strings, S and X, your task is to find the smallest substring in S that contains all the characters present in X.

    Example:

    Input:
    S = "abdd", X = "bd"
    Outpu...
  • Ans. 

    Find the smallest substring in string S that contains all characters in string X.

    • Iterate through string S and keep track of characters in X found in a window

    • Use two pointers to maintain the window and slide it to find the smallest window

    • Return the smallest window containing all characters in X

  • Answered by AI
  • Q2. 

    Smallest Integer Not Representable as Subset Sum

    Given a non-decreasing sorted array ARR of N positive numbers, determine the smallest positive integer that cannot be expressed as the sum of elements from...

  • Ans. 

    Find the smallest positive integer that cannot be expressed as the sum of elements from any proper subset of a non-decreasing sorted array of positive numbers.

    • Start with the smallest possible integer that cannot be represented, which is 1.

    • Iterate through the array and update the smallest integer that cannot be represented.

    • If the current element is greater than the smallest integer that cannot be represented, return tha...

  • Answered by AI
  • Q3. 

    Minimum Steps for a Knight to Reach Target

    Given a square chessboard of size 'N x N', determine the minimum number of moves a Knight requires to reach a specified target position from its initial position...

  • Ans. 

    Calculate the minimum number of moves a Knight needs to reach a target position on a chessboard.

    • Implement a function that takes knight's starting position, target position, and chessboard size as input

    • Use breadth-first search algorithm to find the shortest path for the Knight

    • Consider all possible 8 movements of the Knight on the chessboard

    • Return the minimum number of moves required for the Knight to reach the target po

  • Answered by AI
Round 3 - Face to Face 

(4 Questions)

Round duration - 60 minutes
Round difficulty - Easy

It started with a discussion on the programs given in coding round. They asked me about my interest field after that they directly jumped into Networking, Linux and Ethical Hacking part looking my interest domain. They asked me various question on networking and linux.
Then they asked me to code a simple c program

  • Q1. 

    Reverse Linked List Problem Statement

    Given a singly linked list of integers, return the head of the reversed linked list.

    Example:

    Initial linked list: 1 -> 2 -> 3 -> 4 -> NULL
    Reversed link...
  • Ans. 

    Reverse a singly linked list of integers and return the head of the reversed linked list.

    • Iterate through the linked list and reverse the pointers to point to the previous node.

    • Keep track of the current, previous, and next nodes while reversing the linked list.

    • Update the head of the reversed linked list as the last node encountered during reversal.

  • Answered by AI
  • Q2. What are the port numbers of protocols such as FTP and SMTP?
  • Ans. 

    FTP uses port number 21 and SMTP uses port number 25.

    • FTP uses port 21 for data transfer and port 20 for control information.

    • SMTP uses port 25 for email communication.

    • Understanding port numbers is important for network communication.

  • Answered by AI
  • Q3. Can you explain the OSI Model?
  • Ans. 

    The OSI Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

    • The OSI Model stands for Open Systems Interconnection Model.

    • It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

    • Each layer has specific functions and communicates with the adjacent layers.

    • Example: Layer 1 (Physical) deals with physi...

  • Answered by AI
  • Q4. How do you copy files in Linux?
  • Ans. 

    To copy files in Linux, you can use the 'cp' command.

    • Use the 'cp' command followed by the source file and destination directory to copy a file.

    • To copy a directory and its contents, use the '-r' flag with the 'cp' command.

    • You can also use wildcards like '*' to copy multiple files at once.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMakeMyTrip interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

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.

Final outcome of the interviewSelected

Skills evaluated in this interview

Yatra Interview FAQs

What are the top questions asked in Yatra Data Scientist Intern interview?

Some of the top questions asked at the Yatra Data Scientist Intern interview -

  1. Machine learning learning maths Linear regression mat...read more
  2. Mission value imputat...read more
  3. Python ( loop...read more

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