NeoSoft Systems & Cloud Services Interview Questions and Answers

Q1. How nodejs handle asynchronous operation?
Ans. 
Node.js uses event-driven, non-blocking I/O model to handle asynchronous operations.
• Node.js uses callbacks to handle asynchronous operations.

• It utilizes event loop to process multiple requests concurrently.

• Promises and async/await are also used for handling asynchronous operations in a more readable way.
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Q2. What is pure function?
Ans. 
A pure function is a function that always produces the same output for the same input and has no side effects.
• Always returns the same output for the same input

• Does not modify any external state or variables

• No side effects such as network or database calls

• Easier to test and reason about

• Example: function add(a, b) { return a + b; }
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Normal puzzle code, duration is 30 mins

Q1. What is decorators? tell me breif
Ans. 
Decorators are functions that modify the behavior of other functions or methods.
• Decorators are used to add functionality to existing functions without modifying their code.

• They are commonly used in Python to modify the behavior of functions or methods.

• Decorators are applied using the @decorator_name syntax before the function definition.

• Examples of decorators in Python include @staticmethod, @classmethod, and @property
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Q2. Generator how it is work
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