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MasterCard Data Analyst Interview Questions, Process, and Tips
Top MasterCard Data Analyst Interview Questions and Answers
- Q1. Guesstimate the number of people travelling by local metro in mumbai
- Q2. Reliance fresh wants to open a store in north-eastern part of India. Should it or should it not?
- Q3. If the 3rd position in a string contains 'b' replace it with 'v'
MasterCard Data Analyst Interview Experiences
3 interviews found
sameer kulkarni
(2 Questions)
- Q1. SQL case study for data
- Q2. Find nth salary
- Ans.
To find the nth salary in a dataset
Sort the dataset in descending order based on salary
Remove duplicates if necessary
Return the salary at index n-1
Anonymous
I applied via Approached by Company and was interviewed before Apr 2023. There was 1 interview round.
(3 Questions)
- Q1. Implement lag() and lead() without using lag() or lead()
- Ans.
Implement lag() and lead() functions without using lag() or lead()
To implement lag(), shift the values in the array by one position to the right
To implement lead(), shift the values in the array by one position to the left
For example, to implement lag() on [1, 2, 3, 4], you can shift the values to get [null, 1, 2, 3]
For lead(), you can shift the values to get [2, 3, 4, null]
- Q2. How will you go about optimising a query?
- Ans.
Optimising a query involves identifying bottlenecks and improving efficiency.
Identify slow-performing queries using tools like query execution plans.
Optimize database indexes to speed up query performance.
Limit the number of columns and rows returned in the query.
Avoid using SELECT * and instead specify only the necessary columns.
Use appropriate data types and avoid unnecessary data conversions.
Consider denormalizing d...
- Q3. If the 3rd position in a string contains 'b' replace it with 'v'
- Ans.
Replace 'b' with 'v' in the 3rd position of each string in an array
Iterate through each string in the array
Check if the 3rd position contains 'b'
If yes, replace 'b' with 'v'
Skills evaluated in this interview
Interview Questionnaire
5 Questions
- Q1. Tell me about yourself
- Ans.
I am a data analyst with experience in analyzing and interpreting complex data sets to drive business insights.
Experienced in using statistical analysis tools such as Python, R, and SQL
Proficient in data visualization tools like Tableau and Power BI
Skilled in data cleaning, data mining, and data modeling techniques
Strong problem-solving and critical thinking skills
Effective communicator and team player
Example: I have w...
- Q2. Biggest hurdle you faced during the work you did t organise the tech fest of your college
- Ans.
The biggest hurdle I faced during organizing the tech fest of my college was securing sponsorships.
Difficulty in convincing companies to sponsor the event
Limited budget for organizing a large-scale tech fest
Competition with other college events for sponsorships
Negotiating sponsorship deals and ensuring deliverables
Finding sponsors aligned with the theme and objectives of the tech fest
- Q3. Would you go for an MBA?
- Ans.
Yes, pursuing an MBA can enhance my skills and open up new career opportunities.
An MBA can provide a strong foundation in business and management principles.
It can help develop analytical and problem-solving skills.
An MBA can broaden my network and provide access to valuable connections.
It can open up leadership roles and higher-level positions in organizations.
Having an MBA can increase earning potential and job prosp...
- Q4. Reliance fresh wants to open a store in north-eastern part of India. Should it or should it not?
- Ans.
Yes, Reliance Fresh should open a store in the north-eastern part of India.
The north-eastern part of India has a growing population and increasing consumer demand.
Reliance Fresh can tap into the untapped market potential in the region.
Opening a store in the north-eastern part of India can help Reliance Fresh expand its presence and increase its market share.
Reliance Fresh can leverage its existing supply chain and dist...
- Q5. Guesstimate the number of people travelling by local metro in mumbai
- Ans.
The number of people travelling by local metro in Mumbai is estimated to be in millions.
Mumbai has a population of over 20 million people.
The local metro is a popular mode of transportation in Mumbai.
During peak hours, the metro trains are usually crowded.
The metro network in Mumbai is extensive, covering various parts of the city.
The number of daily commuters on the metro can be estimated based on population density a
Interview Preparation Tips
Experience: cpi above 7.0
Round: Test
Experience: Basic maths, shares related questions and english
Duration: 1 hour
Total Questions: 40
Round: Technical + HR Interview
Experience: Very easy round.
Skills: Aptitude, Communication, Quantitative Aptitude, Leadership Skills, Technical Skill
College Name: IIT Kanpur
Interview questions from similar companies
AKASH KUMAR SINGH
I applied via Campus Placement and was interviewed in Dec 2016. There were 6 interview rounds.
Interview Questionnaire
4 Questions
- Q1. For this round he gave me lot of problems and asked to develop optimal algorithm to solve that. Problems were mainly on trees and number sequences
- Q2. In this round he mainly discussed my projects and asked me how these can be put to use in Paypal. He also asked some basic questions from ML
- Q3. HR round was just for formality
- Q4. Probability , question on calculating expected number of trials and puzzles
Interview Preparation Tips
Experience: The coding question was:
Given a binary string containing 0's and 1's. You can split the string such that each partition should be a exponential of 5 (1,5,25,625...). You were asked to return minimum number of partition for the given string such each partition is exponential of 5. If no such partition exists return -1.
Examples: '101101101' Ans: 3 (101, 101, 101)
'111' Ans: 3 (1,1,1)
10101 Ans: -1
Tips: For MCQ's prepare DSA, OS and Networking. For DSA you can refer to cormen
For Coding question practice on either geeksforgeeks or from any of the coding platforms like hackerrank
The shortlist was mainly dependent on coding question
Duration: 1 hour 30 minutes
Round: Puzzle Interview
Tips: Do lot of puzzles from heard on the street, -----/ , Try to search for more. It will be helpful in other interviews as well
Round: Technical Interview
Tips: Practice algorithm section from geeksforgeeks. There are lot of standard problems. The given questions were slightly modified version of standard problems
Round: Technical Interview
Tips: For this round you need to be well prepared with your projects and resume.
College Name: IIT Madras
Abhishek Sharma
Selected
I applied via Naukri.com and was interviewed before Mar 2023. There was 1 interview round.
(1 Question)
- Q1. Tell me about yourself. Joins questions
I applied via Referral and was interviewed in Oct 2021. There was 1 interview round.
(2 Questions)
- Q1. Basic SQL and excel question.
- Q2. Questions about google data studio
Interview Preparation Tips
Selected
I applied via Instahyre and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. Sql questions on windows functions, subquery
- Q2. Guesstimmate on how many cricket bat is solved in a year
- Ans.
It is difficult to accurately estimate the number of cricket bats sold in a year without specific data.
The number of cricket bats sold in a year can vary based on factors such as seasonality, popularity of cricket, and market trends.
One approach to estimate could be to consider the total population of cricket-playing countries and the average number of bats owned by players.
Another approach could be to look at the sale...
I applied via Referral
(2 Questions)
- Q1. Are you available to join immediately?
- Q2. What's your location preference?
sahithi reddy
Selected
I applied via LinkedIn and was interviewed before Mar 2023. There were 2 interview rounds.
(1 Question)
- Q1. What is the order of execution in sql
- Ans.
The order of execution in SQL is: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.
1. FROM: Specifies the tables involved in the query.
2. WHERE: Filters the rows based on specified conditions.
3. GROUP BY: Groups the rows that have the same values into summary rows.
4. HAVING: Filters groups based on specified conditions.
5. SELECT: Selects the columns to be included in the result set.
6. ORDER BY: Sorts the result set base
(1 Question)
- Q1. How to do conditional formatting in excel
- Ans.
Conditional formatting in Excel allows users to format cells based on specified conditions.
Select the range of cells you want to apply conditional formatting to
Go to the 'Home' tab and click on 'Conditional Formatting'
Choose the desired formatting option, such as color scales, data bars, or icon sets
Set the conditions for when the formatting should be applied, such as greater than, less than, or equal to a certain valu...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website
Interview Questionnaire
1 Question
- Q1. Tell me about a project you worked on in which you handled large set of data and multiple tables.
Interview Preparation Tips
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MasterCard Data Analyst Interview Process
based on 3 interviews
Interview experience
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MasterCard Data Analyst Reviews and Ratings
based on 5 reviews
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