John Deere Senior Software Engineer Interview Questions and Answers

Q1. What is polymorphism in OOPS
Ans. 
Polymorphism in OOPS refers to the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance allows a child class to override a method of its parent class, providing different implem
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Q2. How SQL Performance Can Be Optimized
Ans. 
SQL performance can be optimized by using indexes, optimizing queries, minimizing network round trips, and using proper data types.
• Use indexes on columns frequently used in WHERE clauses to speed up data retrieval.

• Optimize queries by avoiding unnecessary joins, using WHERE clauses effectively, and limiting the number of rows returned.

• Minimize network round trips by batching multiple queries into a single request.

• Use pr...read more
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Q1. Salary Expectation as per Your Role
Ans. 
My salary expectation as a Senior Software Engineer is based on industry standards, my experience, and the responsibilities of the role.
• Research industry standards for Senior Software Engineer salaries

• Consider my years of experience and expertise in software development

• Factor in the specific responsibilities and requirements of the role

• Negotiate based on the company's budget and benefits package

• Be open to discussing sa
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Q2. How will manage If you see the application is crashed
Ans. 
I will investigate the root cause, analyze logs, and work on fixing the issue to prevent future crashes.
• Investigate the crash logs to identify the root cause

• Analyze the code to understand the issue

• Implement a fix for the crash

• Test the fix thoroughly before deploying it

• Implement monitoring and alerting to catch similar issues in the future
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