Kroger Data Analyst Interview Questions and Answers

Coding was fully based on python.
First they told me to on the laptop camera because it was a virtual interview and then they told me to share my screen
1. Starting from self introduction
2. Summarise my project in 2 minutes
3. Then he ask back to back 5-6 python.
questions and I have to write in vs
code ( on shared screen) ,I have to
write the code and then execute it.
They asked. few side questions like
from html and sql.
4. Total duration of interview is 30
minutes

Q1. These is based on communication, salary discussion, responsibilities and work culture.
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Q2. 1. He asked about cap between degree and job 2. Strength and can I work under pressure. 3. How can I manage if I assigned more than 1 project at a time
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General SQL and Python questions for Data analysis and Visualization tools

Q1. What do you understand y Churn Rate ?
Ans. 
Churn Rate is the percentage of customers who stop using a product or service over a certain period of time.
• Churn Rate is calculated by dividing the number of customers who stopped using the product by the total number of customers at the beginning of the period.

• It is used to measure customer retention and satisfaction.

• A high churn rate indicates that a company may be losing customers at a high rate, while a low churn ...read more
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Q2. What can be done to increase retention rate ?
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To increase retention rate, companies can focus on improving employee engagement, providing opportunities for growth and development, offering competitive compensation and benefits, and creating a positive work culture.
• Improve employee engagement through regular feedback sessions and recognition programs

• Provide opportunities for growth and development through training programs and career advancement opportunities

• Offer ...read more
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Q1. Tell about yourself
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Q1. Tell about yourself
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Q1. What are your failures?
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Q1. What is difference between delete,drop and truncate. ?
Ans. 
Delete removes specific rows from a table, drop removes entire table structure, and truncate removes all rows from a table.
• Delete is a DML command, drop is a DDL command, and truncate is a DDL command.

• Delete can be rolled back, drop cannot be rolled back, and truncate cannot be rolled back.

• Delete triggers delete triggers, drop triggers drop triggers, and truncate does not trigger any triggers.

• Example: DELETE FROM table...read more
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Q1. What are iterrators .?
Ans. 
Iterators are objects that allow sequential access to elements in a collection.
• Iterators are used to loop through elements in a collection one at a time.

• They provide a way to access elements without exposing the underlying data structure.

• Iterators have methods like next() to retrieve the next element in the collection.

• Examples of iterators include Python's iter() and Java's Iterator interface.
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Q1. It was general snowflake related
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Q2. Deep dive into architecture of snowflake
Ans. 
Snowflake is a cloud-based data warehousing platform that allows for scalable and efficient data storage and processing.
• Snowflake follows a multi-cluster, shared data architecture.

• It separates storage and compute resources, allowing for independent scaling of each.

• Data is stored in multiple layers - raw data, metadata, and query results.

• Snowflake uses virtual warehouses to process queries, which can be scaled up or dow...read more
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Q1. Coding based round with onsite team members
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Q1. What is Vlookup and Hlookup
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Vlookup and Hlookup are Excel functions used to search for a value in a table and return a corresponding value.
• Vlookup searches for a value in the first column of a table and returns a value in the same row from a specified column.

• Hlookup searches for a value in the first row of a table and returns a value in the same column from a specified row.

• Both functions are commonly used in Excel for data analysis and lookup ope
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