123. What are the differences between blocking and non-blocking calls in the context of Node.js?

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What are the differences between blocking and non-blocking calls in the context of Node.js?

Skill Assessed
  • 1. Understanding of Node.js event-driven architecture : Your ability to explain how Node.js handles operations and the role of its event-driven architecture.

  • 2. Knowledge of asynchronous programming : Your familiarity with async programming practices and patterns, particularly in Node.js.

  • 3. Comprehension of I/O operations : Your understanding of input/output operations and how they're managed by blocking and non-blocking approaches.

  • 4. Problem solving and reasoning : Your capability to analyze and articulate the implications of using blocking versus non-blocking calls.

Purpose
  • 1. Assessing fundamental Node.js knowledge : Determining if you have a solid grasp of core Node.js concepts.

  • 2. Evaluating practical understanding : Understanding if you can apply theoretical knowledge to real-world Node.js programming challenges.

  • 3. Judging decision-making abilities : Seeing if you can make informed decisions about when to use blocking or non-blocking calls.

  • 4. Checking for performance optimization awareness : Evaluating if you are aware of the impact that call types can have on application performance.


Hints
  • 1. Consider event loop : Think about how the event loop works in Node.js and how blocking calls can affect its operation.

  • 2. Give real-world examples : Mention practical use cases or examples where you would use blocking versus non-blocking calls in Node.js applications.

  • 3. Explain backpressure concept : Discuss what backpressure is and how it relates to non-blocking I/O, for a more in-depth answer.

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Topics: 
Technical Skills
Roles: 
Software Engineer
Companies: 
Amazon
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