John Deere Data Analyst Interview Questions and Answers

Q1. Data partitioning
Add your answer
Q2. Data clustering
Add your answer

Q1. Explain ETL process
Ans. 
ETL process involves extracting data from various sources, transforming it to fit business needs, and loading it into a target database.
• Extract: Retrieve data from different sources like databases, files, APIs, etc.

• Transform: Clean, filter, aggregate, and convert data to meet business requirements.

• Load: Insert the transformed data into a target database or data warehouse.

• Example: Extracting sales data from a CRM system...read more
Answered by AI
Add your answer
Q2. How to check if file is empty using python
Ans. 
Use os.path.getsize() to check if file size is 0
• Use os.path.getsize() to get the size of the file in bytes

• Check if the size is 0 to determine if the file is empty
Answered by AI
Add your answer

Q1. Explain projects, python string pattern code, sql query
Ans. 
The question asks the candidate to explain projects, python string pattern code, and SQL query.
• Discuss the projects you have worked on as a data engineer, highlighting your role and the technologies used.

• Explain how you have used Python string pattern code to manipulate and analyze data.

• Provide an example of a SQL query you have written to extract and analyze data from a database.

• Emphasize the impact and results of you...read more
Answered by AI
Add your answer

Easy and simple codes and also both aptitude and coding were included in the test.

Q1. Asked to write some easy codes like anagrams, palindrome etc
Add your answer
Q2. About Machine Learning and also discussion on the resume
Add your answer
Q3. Completed both hr and technical rounds.
Add your answer

Q1. How did manage risks during migration of DB
Ans. 
I managed risks during migration of DB by conducting thorough risk assessments, creating backup plans, and involving key stakeholders.
• Conducted thorough risk assessments to identify potential issues

• Created backup plans to mitigate risks and minimize downtime

• Involved key stakeholders in the migration process to ensure alignment and support
Answered by AI
Add your answer

Q1. Explain Order of execution in SQL
Ans. 
Order of execution in SQL determines the sequence in which different clauses are processed in a query.
• SQL query is processed in the following order: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.

• FROM clause is processed first to retrieve data from tables.

• WHERE clause filters the data based on specified conditions.

• GROUP BY clause groups the data based on specified columns.

• HAVING clause filters the grouped data.

• SELECT ...read more
Answered by AI
Add your answer
Q2. Sumifs function
Add your answer
Q3. Boxplots?Histograms?
Add your answer