Jarvis Technology and Strategy Consulting Data Analyst Interview Questions and Answers

Round duration - 60 minutes
Round difficulty - Easy

This was an online aptitude round on the Talview platform which we can give from our Home. To attempt this test, we have been given a window of 12-24 hours. It was a proctored online test. The round consisted of 60 aptitude questions in 60 minutes of time without any negative marking. The aptitude test consisted of various questions of Logical Reasoning, Mental Ability, Data Interpretation Questions, Numerical Reasoning.

Q1. 
Matrix Transpose Problem Statement
Given a matrix MAT, your task is to return the transpose of the matrix. The transpose of a matrix is obtained by converting rows into columns and vice versa. Specificall...read more
Ans. 
Transpose a given matrix by switching rows and columns.
• Iterate through the matrix and swap elements at [i][j] with [j][i].

• Create a new matrix to store the transposed values.

• Ensure the dimensions of the transposed matrix are reversed from the original matrix.
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Round duration - 30 minutes
Round difficulty - Medium

This was a video interview round taken immediately after the Aptitude test, it was a proctored round on Talview platform. This round consisted of 8 questions, we have to answer each question in the span of 3 mins and 10 secs were given for reading the question, our audio and video was being recorded while answering those questions. Our soft skills were being judged in this round. The questions basically consisted of HR questions and Guesstimates

Round duration - 120 minutes
Round difficulty - Hard

This round was the case study round, in this round, we were provided a case study which we had to solve in 1 hour using pen and paper and had to share the answers of the case study questions in a PDF format to the HR, the questions were related to market share, advertisement strategies, and can be easily solved using basic mathematics. After this, there was be a one-to-one interview on Zoom Platform in which the interviewer will ask you to describe your approach for every question you have solved in the case study, they will not ask for the exact answer, all they ask is about your approach that you have used to solve a particular problem and the way you explain it. They may or may not ask some guesstimates or puzzles as well in this round. The interviewer was very friendly and he gave me hints as well if I was stuck somewhere.

Round duration - 60 minutes
Round difficulty - Hard

The next round was the Behavioral interview round, in this round, the interviewer asked me about my projects and some guesstimates or puzzles. This round was for 1 hour. The interviewer was very friendly and helpful, she helped me if I was stuck somewhere, she kept me calm during the interview process.

Q1. How many people do you estimate watched Ramayana/Mahabharat during the first month of the Covid lockdown in 2020?
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Round duration - 40 minutes
Round difficulty - Hard

The fit round was my final interview round, in this, you will meet the manager/Principal from the company. They will basically check whether you are fit for the organization. They ask about the projects I have done in college/internships. Some basic questions like what are your strengths and weaknesses, why do you want to join the company and some guesstimates or puzzles as well.
On-campus, the behavioral and fit interview rounds were combined into one.
This round was of 40 minutes and the interview was taken on Zoom, the interviewer was helpful and sweet.

Q1. How many pizzas are sold in one day in Pune?
Ans. 
The number of pizzas sold in Pune in one day varies depending on factors like day of the week, weather, events, etc.
• The number of pizzas sold in Pune can range from hundreds to thousands in a day.

• Factors like day of the week (weekend vs weekday), weather (rainy vs sunny), events (festivals, holidays) can impact the sales.

• Popular pizza outlets in Pune like Domino's, Pizza Hut, etc. contribute to the overall sales.

• Data f...read more
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Basic aptitude questions liek tiem distance, percentage , ratio, work and hour

Excel, Numpy, Pandas, basic ML

Case study talking about how to optimise the supply chain using data analytics

Q1. Power BI Difference between ALL() and ALLSELECTED()
Ans. 
ALL() ignores all filters in the query context, while ALLSELECTED() ignores only filters on columns in the visual.
• ALL() removes all filters from the specified column or table.

• ALLSELECTED() removes filters from the specified column or table, but keeps filters on other columns in the visual.

• Example: ALL('Table') would remove all filters on the 'Table' in the query context.

• Example: ALLSELECTED('Column') would remove filte...read more
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Q2. Excel Difference between COUNT() and COUNTA()
Ans. 
COUNT() counts only numeric values, while COUNTA() counts all non-empty cells.
• COUNT() counts only cells with numerical values.

• COUNTA() counts all non-empty cells, including text and errors.

• Example: COUNT(A1:A5) will count only cells with numbers, while COUNTA(A1:A5) will count all non-empty cells.
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Q1. Resume based questions like explain the projects that you have done.
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Q2. Sample dataset questions
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Q1. Tell me about yourself
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Q2. Expected salary
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Nice Topics and easy questions

1 hour and nice experience

How is world evolving

Q1. What is the number of tourist per day in jaipur
Ans. 
The number of tourists per day in Jaipur varies depending on the season and events happening in the city.
• Tourist numbers fluctuate based on time of year (peak season vs off-peak season)

• Events like festivals or cultural events can attract more tourists

• Historical sites like Amer Fort and Hawa Mahal are popular attractions

• Tourist numbers can be estimated based on hotel occupancy rates and ticket sales for attractions
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Business problems were asked and analyzed the approach to solve the problem. Reading case studies would help you here

Q1. Few Statistics questions were asked. Some coding. And all about our resume in depth. Prepare your resume and Stats well.
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