Vegrow Data Analyst Interview Questions and Answers

Q1. How do you setup a Dark Store?
Ans. 
Setting up a Dark Store involves converting a retail store into a fulfillment center for online orders.
• Select a suitable location for the Dark Store, preferably in a centralized area with good access to transportation.

• Optimize the layout of the store for efficient picking, packing, and shipping of orders.

• Implement inventory management systems to track stock levels accurately and prevent stockouts.

• Train staff on order f...read more
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Q2. How do joins work in the simplest manner?
Ans. 
Joins combine data from two or more tables based on a related column.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id
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Q3. Write a basic query explaining the order of execution?
Ans. 
The order of execution in a query determines the sequence in which operations are performed.
• 1. The order of execution in a query typically follows the sequence: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.

• 2. The FROM clause specifies the tables involved in the query.

• 3. The WHERE clause filters the rows based on specified conditions.

• 4. The GROUP BY clause groups the rows that have the same values into summary rows.

• 5...read more
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Q4. Difference between Group By and Distinct?
Ans. 
Group By is used to aggregate data based on a specific column, while Distinct is used to remove duplicate rows from a result set.
• Group By is used with aggregate functions like COUNT, SUM, AVG, etc.

• Distinct is used to retrieve unique values from a column or set of columns.

• Group By can be used to group data based on multiple columns, while Distinct operates on individual columns only.
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Asked to write different SQL queries.
1. Moving average of lf previous 10 days
2. For a data which records in and out time of an employee. How many employees were present in the office at a given time
3. A/B testing vs pre-post testing

1. Had to come up with a method to give a score to each user based on FRM(frequency, recency, monetory)
2. Guesstimate: how many burgers does McD sells in a day

Q1. About previous experience situation based questions excel problem solving
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Q2. Tell me about yourself difference between data quality and data validity
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Q1. Basic questions on our previous work experince
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Q2. What are the charters you have worked on
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Q1. Some technical questions on excel and sql
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Round duration - 20 minutes
Round difficulty - Easy

Received a sudden call from one of the interviewers (Came to know this later as first round interview was with the same person). No background disturbances, but they took me by surprise.

Round duration - 90 minutes
Round difficulty - Easy

Evening time
Virtual interview from home, so choose a calm place
Interviewer really helpful and was giving ample time to solve

Round duration - 90 minutes
Round difficulty - Easy

Afternoon

Round duration - 60 minutes
Round difficulty - Easy

Evening

Q1. 
Find the Third Greatest Element
Given an array 'ARR' of 'N' distinct integers, determine the third largest element in the array.
Input:
The first line contains a single integer 'T' representing the numb...read more
Ans. 
Find the third largest element in an array of distinct integers.
• Sort the array in descending order

• Return the element at index 2 as the third largest element
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Round duration - 90 Minutes
Round difficulty - Easy

Evening.
This round is with the co-founder as he acts as the hiring manager as well. 
This round is the most tricky one and you really need to be very careful in what you answer in this interview.

Sql Coding round questions were asked

Q1. SQL coding round
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Q1. Sql Coding round
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Q1. Basic questions salary expectations
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As I had applied for analyst role, I was asked questions from SQL, Excel and Python.

Q1. What do you understand about the company?
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Q2. Expectations from the company for the role
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