PACCAR Information Technology Intern Interview Questions and Answers

Quant , Logical REASONING , Java

Q1. Why should we hire you?
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Q2. What is your family background?
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Q3. Tell me about yourself.
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Q1. Why do you want to change the job?
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Q2. Where do you want to see yourself in next 5 years?
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Q1. What is polymorphism in OOPS
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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
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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
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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
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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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Q1. Tell me about yourself
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I am a Senior Engineer with 10+ years of experience in software development, specializing in backend systems and database management.
• 10+ years of experience in software development

• Specialize in backend systems and database management

• Strong problem-solving skills

• Experience with various programming languages such as Java, Python, and SQL
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