[Solved] What is the main purpose of using a cluster in a Node.js application? — Ans: To use multiple CPU cores by creating worker processes | Node.js

Node.js - Cluster Module

What is the main purpose of using a cluster in a Node.js application?

ATo forward HTTP requests to different servers

BTo use multiple CPU cores by creating worker processes

CTo add security features like SSL termination

DTo cache static files for faster delivery

Step-by-Step Solution

Solution:

Step 1: Understand what a cluster does in Node.js
A cluster creates multiple worker processes to use all CPU cores efficiently.
Step 2: Compare with other options
Forwarding requests and adding security are tasks of a reverse proxy, not a cluster.
Final Answer:
To use multiple CPU cores by creating worker processes -> Option B
Quick Check:
Cluster = multiple CPU cores [OK]

Quick Trick: Clusters = multiple CPU cores, reverse proxy = request forwarding [OK]

Common Mistakes:

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