EXL Service interview experience Real time questions & tips from candidates to crack your interview
Junior analyst
EXL Service
3 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 6 months
Topics: Data Structures, OOPS, Machine learning, Deep Learning, Algorithms
Tip 1 : Do 3-4 Capstone projects
Tip 2 : Make your hands-on only 3-4 Algorithms like linear,logistics etc.
Application process
Where: Linkedin
Eligibility: No crieteria
Tip 1 : Don't add too much stuff in resume i.e. dont fake it. Add relevant stuff only.
Tip 2 : Add more projects and things like Excel, SQL , and Tableau should be mentioned in the resume
Tip 3 : Needs to have atleast 2 ML projects.
Interview rounds
01
Round
Medium
Telephonic
Duration30 minutes
Interview date5 Jan 2022
Coding problem1
This was the telephonic round where problem based and theoretical questions were asked based on the resume. It was conducted in the afternoon. The interviewer was humble. Most of the questions were related to Python,SQL, and Probability.
1. DBMS Questions
Q. What are some common clauses used with SELECT query in SQL?
Q. What are the various forms of Normalization?
Q. What is System R? How many of its two major subsystems?
Problem approach
Tip 1 : Have detailed knowledge of SQL.
Tip 2 : Pratice SQL commands.
02
Round
Medium
Face to Face
Duration60 Minutes
Interview date12 Jan 2022
Coding problem2
This round was the technical round. Questions were based on ML, Python, Data Visualization and NLP. It was conducted in evening for 1 hour.
1. Check Palindrome
Easy
0/40
Asked in companies
You're given an alphabetical string ‘S’.
Determine whether it is palindrome or not. A palindrome is a string that is equal to itself upon reversing it.
For example:
‘S’ = racecar
The reverse of ‘S’ is: racecar
Since ‘S’ is equal to its reverse. So ‘S’ is a palindrome.
Hence output will be 1.
Problem approach
The interviewer wanted to know that how I would solve the problem. No need to code it. Just let the interviewer know the steps to be followed.
Step1: Explain what Palindrome is?
Step 2: The problem can be solved through for loop or while loop.
Step 3: Gave the solution through "while" loop as well as from "for" loop.
2. Machine Learning Questions
Q1. What is Overfitting, and How Can You Avoid It?
Q2. What is ‘training Set’ and ‘test Set’ in a Machine Learning Model? How Much Data Will You Allocate for Your Training, Validation, and Test Sets?
Q3. How Can You Choose a Classifier Based on a Training Set Data Size?
Q4. How is Amazon Able to Recommend Other Things to Buy? How Does the Recommendation Engine Work?
Q5. What is Pruning in Decision Trees, and How Is It Done?
Problem approach
Tip 1 : have hands-on the ML algorithms, Python, Data visualization.
Tip 2 : Try to give practical examples which use ML algorithms
03
Round
Easy
HR Round
Duration20 Minutes
Interview date17 Jan 2022
Coding problem1
This was the last round where general questions were asked. The Interviewer was kind. It was scheduled in morning. All is you need to be confident while giving interview.
1. Basic HR Questions
Q1. What are your plans for future?
Q2.What experience do you have that would be relevant to this role?
Q3. What did you like most about the job description?
Problem approach
Tip 1 : Be accurate in your answers.
Tip 2 : Read job description before giving.
Here's your problem of the day 
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Skill covered: Programming
What is recursion?
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