Infosys Assistant System Engineer Interview Questions, Process, and Tips

Compiler is a program that translates source code written in a high-level language into machine code.

• Compilers are used to convert human-readable code into machine-readable code.

• They perform lexical analysis, syntax analysis, semantic analysis, and code optimization.

• Examples of compilers include GCC, Clang, and Microsoft Visual C++.

A class file is a compiled Java program that contains bytecode instructions for the Java Virtual Machine to execute.

• Class files have a .class extension

• They are generated by the Java compiler from .java source files

• Class files are platform-independent and can be executed on any system with a Java Virtual Machine

• They contain information about the class name, superclass, interfaces, fields, and methods

A tuple is an ordered set of values or elements.

• Tuples are immutable, meaning their values cannot be changed once created.

• Tuples can contain elements of different data types.

• Tuples are often used to return multiple values from a function.

• Example: ('apple', 'banana', 'cherry')

• Example: (1, 'hello', True)

An operating system is a software that manages computer hardware and software resources.

• It acts as an interface between the user and the computer hardware.

• It provides services to applications and manages system resources.

• Examples include Windows, macOS, Linux, Android, iOS.

• It controls the allocation of memory, processing power, and input/output devices.

• It provides security and protection to the system and its data.