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Which of the following best describes the role of the fork method in Node.js?

easy📝 Conceptual Q1 of 15
Node.js - Child Processes
Which of the following best describes the role of the fork method in Node.js?
AIt creates a new Node.js process that can communicate with the parent process.
BIt compiles JavaScript code into machine code for faster execution.
CIt merges multiple Node.js processes into a single thread.
DIt schedules asynchronous callbacks in the event loop.
Step-by-Step Solution
Solution:

  1. Step 1: Understand fork

    The fork method in Node.js is used to create a new child process that runs a separate Node.js instance.

  2. Step 2: Communication capability

    Unlike other child process methods, fork sets up an IPC (inter-process communication) channel allowing message exchange between parent and child.

  3. Final Answer:

    It creates a new Node.js process that can communicate with the parent process. -> Option A

  4. Quick Check:

    Check if the method creates a child process with IPC [OK]
Quick Trick: fork creates a child Node.js process with communication [OK]
Common Mistakes:
  • Confusing fork with spawn or exec which don't set up IPC by default.
  • Thinking fork merges processes instead of creating new ones.
  • Assuming fork compiles code or manages event loop tasks.

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