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In Node.js, what is the main advantage of using the cluster module for handling multiple requests?

easy📝 Conceptual Q1 of 15
Node.js - Cluster Module
In Node.js, what is the main advantage of using the cluster module for handling multiple requests?
AIt provides built-in database connection pooling
BIt enables asynchronous programming within a single thread
CIt automatically caches HTTP responses for faster delivery
DIt allows the application to utilize multiple CPU cores by creating worker processes
Step-by-Step Solution
Solution:

  1. Step 1: Understand Node.js single-threaded nature

    Node.js runs JavaScript in a single thread, which limits CPU core usage.

  2. Step 2: Role of cluster module

    The cluster module creates multiple worker processes to utilize all CPU cores, improving concurrency.

  3. Final Answer:

    It allows the application to utilize multiple CPU cores by creating worker processes -> Option D

  4. Quick Check:

    Cluster module enables multi-core usage [OK]
Quick Trick: Cluster module forks workers to use all CPU cores [OK]
Common Mistakes:
  • Confusing cluster with asynchronous programming
  • Assuming cluster caches responses
  • Thinking cluster manages database connections

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