Amazon System Analyst Interview Questions and Answers

A thread is a lightweight process that can run concurrently with other threads within a program.

• Threads share the same memory space as the parent process.

• Threads can communicate with each other through shared memory.

• Threads can improve performance by allowing multiple tasks to be executed simultaneously.

• Examples of multi-threaded programs include web servers and video games.

A program to print numbers from 1 to 10.

• Use a loop to iterate from 1 to 10.

• Print each number in the loop.

• Ensure the loop stops at 10.

Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.

• Method overloading is used to provide different ways of calling the same method with different parameters.

• Method overriding is used to provide a specific implementation of a method that is already provided by it...read more

Compiler translates entire code to machine language, while interpreter translates line by line.

• Compiler generates object code, while interpreter executes code directly.

• Compiler is faster, but interpreter is more flexible.

• Examples of compilers: GCC, Clang. Examples of interpreters: Python, Ruby.

• Compilers are used for languages like C, C++, while interpreters are used for languages like Python, Ruby, JavaScript.

An amplifier is an electronic device that increases the amplitude of a signal.

• Amplifiers are commonly used in audio systems to increase the volume of sound.

• They can also be used in radio and television broadcasting to boost the strength of signals.

• Amplifiers come in different types such as transistor, vacuum tube, and operational amplifiers.

• They can be designed for different purposes such as power amplifiers, volt...read more