PACCAR Information Technology Intern Interview Questions and Answers

Compilation process involves several steps to convert source code into executable code.

• Preprocessing: Includes header file inclusion, macro expansion, and conditional compilation.

• Compilation: Translates source code into assembly code.

• Assembly: Converts assembly code into machine code.

• Linking: Combines object files and libraries to create an executable file.

• Loading: Loads the executable file into memory and prepares it

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

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

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

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

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